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How to Cite Research Paper – All Formats and Examples

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Research Paper Citation

Research paper citation refers to the act of acknowledging and referencing a previously published work in a scholarly or academic paper . When citing sources, researchers provide information that allows readers to locate the original source, validate the claims or arguments made in the paper, and give credit to the original author(s) for their work.

The citation may include the author’s name, title of the publication, year of publication, publisher, and other relevant details that allow readers to trace the source of the information. Proper citation is a crucial component of academic writing, as it helps to ensure accuracy, credibility, and transparency in research.

How to Cite Research Paper

There are several formats that are used to cite a research paper. Follow the guide for the Citation of a Research Paper:

Last Name, First Name. Title of Book. Publisher, Year of Publication.

Example : Smith, John. The History of the World. Penguin Press, 2010.

Journal Article

Last Name, First Name. “Title of Article.” Title of Journal, vol. Volume Number, no. Issue Number, Year of Publication, pp. Page Numbers.

Example : Johnson, Emma. “The Effects of Climate Change on Agriculture.” Environmental Science Journal, vol. 10, no. 2, 2019, pp. 45-59.

Research Paper

Last Name, First Name. “Title of Paper.” Conference Name, Location, Date of Conference.

Example : Garcia, Maria. “The Importance of Early Childhood Education.” International Conference on Education, Paris, 5-7 June 2018.

Author’s Last Name, First Name. “Title of Webpage.” Website Title, Publisher, Date of Publication, URL.

Example : Smith, John. “The Benefits of Exercise.” Healthline, Healthline Media, 1 March 2022, https://www.healthline.com/health/benefits-of-exercise.

News Article

Last Name, First Name. “Title of Article.” Name of Newspaper, Date of Publication, URL.

Example : Robinson, Sarah. “Biden Announces New Climate Change Policies.” The New York Times, 22 Jan. 2021, https://www.nytimes.com/2021/01/22/climate/biden-climate-change-policies.html.

Author, A. A. (Year of publication). Title of book. Publisher.

Example: Smith, J. (2010). The History of the World. Penguin Press.

Author, A. A., Author, B. B., & Author, C. C. (Year of publication). Title of article. Title of Journal, volume number(issue number), page range.

Example: Johnson, E., Smith, K., & Lee, M. (2019). The Effects of Climate Change on Agriculture. Environmental Science Journal, 10(2), 45-59.

Author, A. A. (Year of publication). Title of paper. In Editor First Initial. Last Name (Ed.), Title of Conference Proceedings (page numbers). Publisher.

Example: Garcia, M. (2018). The Importance of Early Childhood Education. In J. Smith (Ed.), Proceedings from the International Conference on Education (pp. 60-75). Springer.

Author, A. A. (Year, Month Day of publication). Title of webpage. Website name. URL

Example: Smith, J. (2022, March 1). The Benefits of Exercise. Healthline. https://www.healthline.com/health/benefits-of-exercise

Author, A. A. (Year, Month Day of publication). Title of article. Newspaper name. URL.

Example: Robinson, S. (2021, January 22). Biden Announces New Climate Change Policies. The New York Times. https://www.nytimes.com/2021/01/22/climate/biden-climate-change-policies.html

Chicago/Turabian style

Please note that there are two main variations of the Chicago style: the author-date system and the notes and bibliography system. I will provide examples for both systems below.

Author-Date system:

• In-text citation: (Author Last Name Year, Page Number)
• Reference list: Author Last Name, First Name. Year. Title of Book. Place of publication: Publisher.
• In-text citation: (Smith 2005, 28)
• Reference list: Smith, John. 2005. The History of America. New York: Penguin Press.

Notes and Bibliography system:

• Footnote/Endnote citation: Author First Name Last Name, Title of Book (Place of publication: Publisher, Year), Page Number.
• Bibliography citation: Author Last Name, First Name. Title of Book. Place of publication: Publisher, Year.
• Footnote/Endnote citation: John Smith, The History of America (New York: Penguin Press, 2005), 28.
• Bibliography citation: Smith, John. The History of America. New York: Penguin Press, 2005.

JOURNAL ARTICLES:

• Reference list: Author Last Name, First Name. Year. “Article Title.” Journal Title Volume Number (Issue Number): Page Range.
• In-text citation: (Johnson 2010, 45)
• Reference list: Johnson, Mary. 2010. “The Impact of Social Media on Society.” Journal of Communication 60(2): 39-56.
• Footnote/Endnote citation: Author First Name Last Name, “Article Title,” Journal Title Volume Number, Issue Number (Year): Page Range.
• Bibliography citation: Author Last Name, First Name. “Article Title.” Journal Title Volume Number, Issue Number (Year): Page Range.
• Footnote/Endnote citation: Mary Johnson, “The Impact of Social Media on Society,” Journal of Communication 60, no. 2 (2010): 39-56.
• Bibliography citation: Johnson, Mary. “The Impact of Social Media on Society.” Journal of Communication 60, no. 2 (2010): 39-56.

RESEARCH PAPERS:

• Reference list: Author Last Name, First Name. Year. “Title of Paper.” Conference Proceedings Title, Location, Date. Publisher, Page Range.
• In-text citation: (Jones 2015, 12)
• Reference list: Jones, David. 2015. “The Effects of Climate Change on Agriculture.” Proceedings of the International Conference on Climate Change, Paris, France, June 1-3, 2015. Springer, 10-20.
• Footnote/Endnote citation: Author First Name Last Name, “Title of Paper,” Conference Proceedings Title, Location, Date (Place of publication: Publisher, Year), Page Range.
• Bibliography citation: Author Last Name, First Name. “Title of Paper.” Conference Proceedings Title, Location, Date. Place of publication: Publisher, Year.
• Footnote/Endnote citation: David Jones, “The Effects of Climate Change on Agriculture,” Proceedings of the International Conference on Climate Change, Paris, France, June 1-3, 2015 (New York: Springer, 10-20).
• Bibliography citation: Jones, David. “The Effects of Climate Change on Agriculture.” Proceedings of the International Conference on Climate Change, Paris, France, June 1-3, 2015. New York: Springer, 10-20.
• In-text citation: (Author Last Name Year)
• Reference list: Author Last Name, First Name. Year. “Title of Webpage.” Website Name. URL.
• In-text citation: (Smith 2018)
• Reference list: Smith, John. 2018. “The Importance of Recycling.” Environmental News Network. https://www.enn.com/articles/54374-the-importance-of-recycling.
• Footnote/Endnote citation: Author First Name Last Name, “Title of Webpage,” Website Name, URL (accessed Date).
• Bibliography citation: Author Last Name, First Name. “Title of Webpage.” Website Name. URL (accessed Date).
• Footnote/Endnote citation: John Smith, “The Importance of Recycling,” Environmental News Network, https://www.enn.com/articles/54374-the-importance-of-recycling (accessed April 8, 2023).
• Bibliography citation: Smith, John. “The Importance of Recycling.” Environmental News Network. https://www.enn.com/articles/54374-the-importance-of-recycling (accessed April 8, 2023).

NEWS ARTICLES:

• Reference list: Author Last Name, First Name. Year. “Title of Article.” Name of Newspaper, Month Day.
• In-text citation: (Johnson 2022)
• Reference list: Johnson, Mary. 2022. “New Study Finds Link Between Coffee and Longevity.” The New York Times, January 15.
• Footnote/Endnote citation: Author First Name Last Name, “Title of Article,” Name of Newspaper (City), Month Day, Year.
• Bibliography citation: Author Last Name, First Name. “Title of Article.” Name of Newspaper (City), Month Day, Year.
• Footnote/Endnote citation: Mary Johnson, “New Study Finds Link Between Coffee and Longevity,” The New York Times (New York), January 15, 2022.
• Bibliography citation: Johnson, Mary. “New Study Finds Link Between Coffee and Longevity.” The New York Times (New York), January 15, 2022.

Harvard referencing style

Format: Author’s Last name, First initial. (Year of publication). Title of book. Publisher.

Example: Smith, J. (2008). The Art of War. Random House.

Journal article:

Format: Author’s Last name, First initial. (Year of publication). Title of article. Title of journal, volume number(issue number), page range.

Example: Brown, M. (2012). The impact of social media on business communication. Harvard Business Review, 90(12), 85-92.

Research paper:

Format: Author’s Last name, First initial. (Year of publication). Title of paper. In Editor’s First initial. Last name (Ed.), Title of book (page range). Publisher.

Example: Johnson, R. (2015). The effects of climate change on agriculture. In S. Lee (Ed.), Climate Change and Sustainable Development (pp. 45-62). Springer.

Format: Author’s Last name, First initial. (Year, Month Day of publication). Title of page. Website name. URL.

Example: Smith, J. (2017, May 23). The history of the internet. Encyclopedia Britannica. https://www.britannica.com/topic/history-of-the-internet

News article:

Format: Author’s Last name, First initial. (Year, Month Day of publication). Title of article. Title of newspaper, page number (if applicable).

Example: Thompson, E. (2022, January 5). New study finds coffee may lower risk of dementia. The New York Times, A1.

IEEE Format

Author(s). (Year of Publication). Title of Book. Publisher.

Smith, J. K. (2015). The Power of Habit: Why We Do What We Do in Life and Business. Random House.

Journal Article:

Author(s). (Year of Publication). Title of Article. Title of Journal, Volume Number (Issue Number), page numbers.

Johnson, T. J., & Kaye, B. K. (2016). Interactivity and the Future of Journalism. Journalism Studies, 17(2), 228-246.

Author(s). (Year of Publication). Title of Paper. Paper presented at Conference Name, Location.

Jones, L. K., & Brown, M. A. (2018). The Role of Social Media in Political Campaigns. Paper presented at the 2018 International Conference on Social Media and Society, Copenhagen, Denmark.

• Website: Author(s) or Organization Name. (Year of Publication or Last Update). Title of Webpage. Website Name. URL.

Example: National Aeronautics and Space Administration. (2019, August 29). NASA’s Mission to Mars. NASA. https://www.nasa.gov/topics/journeytomars/index.html

• News Article: Author(s). (Year of Publication). Title of Article. Name of News Source. URL.

Example: Johnson, M. (2022, February 16). Climate Change: Is it Too Late to Save the Planet? CNN. https://www.cnn.com/2022/02/16/world/climate-change-planet-scn/index.html

Vancouver Style

In-text citation: Use superscript numbers to cite sources in the text, e.g., “The study conducted by Smith and Johnson^1 found that…”.

Reference list citation: Format: Author(s). Title of book. Edition if any. Place of publication: Publisher; Year of publication.

Example: Smith J, Johnson L. Introduction to Molecular Biology. 2nd ed. New York: Wiley-Blackwell; 2015.

In-text citation: Use superscript numbers to cite sources in the text, e.g., “Several studies have reported that^1,2,3…”.

Reference list citation: Format: Author(s). Title of article. Abbreviated name of journal. Year of publication; Volume number (Issue number): Page range.

Example: Jones S, Patel K, Smith J. The effects of exercise on cardiovascular health. J Cardiol. 2018; 25(2): 78-84.

In-text citation: Use superscript numbers to cite sources in the text, e.g., “Previous research has shown that^1,2,3…”.

Reference list citation: Format: Author(s). Title of paper. In: Editor(s). Title of the conference proceedings. Place of publication: Publisher; Year of publication. Page range.

Example: Johnson L, Smith J. The role of stem cells in tissue regeneration. In: Patel S, ed. Proceedings of the 5th International Conference on Regenerative Medicine. London: Academic Press; 2016. p. 68-73.

In-text citation: Use superscript numbers to cite sources in the text, e.g., “According to the World Health Organization^1…”.

Reference list citation: Format: Author(s). Title of webpage. Name of website. URL [Accessed Date].

Example: World Health Organization. Coronavirus disease (COVID-19) advice for the public. World Health Organization. https://www.who.int/emergencies/disease/novel-coronavirus-2019/advice-for-public [Accessed 3 March 2023].

In-text citation: Use superscript numbers to cite sources in the text, e.g., “According to the New York Times^1…”.

Reference list citation: Format: Author(s). Title of article. Name of newspaper. Year Month Day; Section (if any): Page number.

Example: Jones S. Study shows that sleep is essential for good health. The New York Times. 2022 Jan 12; Health: A8.

Author(s). Title of Book. Edition Number (if it is not the first edition). Publisher: Place of publication, Year of publication.

Example: Smith, J. Chemistry of Natural Products. 3rd ed.; CRC Press: Boca Raton, FL, 2015.

Journal articles:

Author(s). Article Title. Journal Name Year, Volume, Inclusive Pagination.

Example: Garcia, A. M.; Jones, B. A.; Smith, J. R. Selective Synthesis of Alkenes from Alkynes via Catalytic Hydrogenation. J. Am. Chem. Soc. 2019, 141, 10754-10759.

Research papers:

Author(s). Title of Paper. Journal Name Year, Volume, Inclusive Pagination.

Example: Brown, H. D.; Jackson, C. D.; Patel, S. D. A New Approach to Photovoltaic Solar Cells. J. Mater. Chem. 2018, 26, 134-142.

Author(s) (if available). Title of Webpage. Name of Website. URL (accessed Month Day, Year).

Example: National Institutes of Health. Heart Disease and Stroke. National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov/health-topics/heart-disease-and-stroke (accessed April 7, 2023).

News articles:

Author(s). Title of Article. Name of News Publication. Date of Publication. URL (accessed Month Day, Year).

Example: Friedman, T. L. The World is Flat. New York Times. April 7, 2023. https://www.nytimes.com/2023/04/07/opinion/world-flat-globalization.html (accessed April 7, 2023).

In AMA Style Format, the citation for a book should include the following information, in this order:

• Title of book (in italics)
• Edition (if applicable)
• Place of publication
• Year of publication

Lodish H, Berk A, Zipursky SL, et al. Molecular Cell Biology. 4th ed. New York, NY: W. H. Freeman; 2000.

In AMA Style Format, the citation for a journal article should include the following information, in this order:

• Title of article
• Abbreviated title of journal (in italics)
• Year of publication; volume number(issue number):page numbers.

Chen H, Huang Y, Li Y, et al. Effects of mindfulness-based stress reduction on depression in adolescents and young adults: a systematic review and meta-analysis. JAMA Netw Open. 2020;3(6):e207081. doi:10.1001/jamanetworkopen.2020.7081

In AMA Style Format, the citation for a research paper should include the following information, in this order:

• Title of paper
• Name of journal or conference proceeding (in italics)
• Volume number(issue number):page numbers.

Bredenoord AL, Kroes HY, Cuppen E, Parker M, van Delden JJ. Disclosure of individual genetic data to research participants: the debate reconsidered. Trends Genet. 2011;27(2):41-47. doi:10.1016/j.tig.2010.11.004

In AMA Style Format, the citation for a website should include the following information, in this order:

• Title of web page or article
• Name of website (in italics)
• Date of publication or last update (if available)
• URL (website address)
• Date of access (month day, year)

Centers for Disease Control and Prevention. How to protect yourself and others. CDC. Published February 11, 2022. Accessed February 14, 2022. https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/prevention.html

In AMA Style Format, the citation for a news article should include the following information, in this order:

• Name of newspaper or news website (in italics)
• Date of publication

Gorman J. Scientists use stem cells from frogs to build first living robots. The New York Times. January 13, 2020. Accessed January 14, 2020. https://www.nytimes.com/2020/01/13/science/living-robots-xenobots.html

Bluebook Format

One author: Daniel J. Solove, The Future of Reputation: Gossip, Rumor, and Privacy on the Internet (Yale University Press 2007).

Two or more authors: Martha Nussbaum and Saul Levmore, eds., The Offensive Internet: Speech, Privacy, and Reputation (Harvard University Press 2010).

Journal article

One author: Daniel J. Solove, “A Taxonomy of Privacy,” University of Pennsylvania Law Review 154, no. 3 (January 2006): 477-560.

Two or more authors: Ethan Katsh and Andrea Schneider, “The Emergence of Online Dispute Resolution,” Journal of Dispute Resolution 2003, no. 1 (2003): 7-19.

One author: Daniel J. Solove, “A Taxonomy of Privacy,” GWU Law School Public Law Research Paper No. 113, 2005.

Two or more authors: Ethan Katsh and Andrea Schneider, “The Emergence of Online Dispute Resolution,” Cyberlaw Research Paper Series Paper No. 00-5, 2000.

WebsiteElectronic Frontier Foundation, “Surveillance Self-Defense,” accessed April 8, 2023, https://ssd.eff.org/.

News article

One author: Mark Sherman, “Court Deals Major Blow to Net Neutrality Rules,” ABC News, January 14, 2014, https://abcnews.go.com/Politics/wireStory/court-deals-major-blow-net-neutrality-rules-21586820.

Two or more authors: Siobhan Hughes and Brent Kendall, “AT&T Wins Approval to Buy Time Warner,” Wall Street Journal, June 12, 2018, https://www.wsj.com/articles/at-t-wins-approval-to-buy-time-warner-1528847249.

In-Text Citation: (Author’s last name Year of Publication: Page Number)

Example: (Smith 2010: 35)

Reference List Citation: Author’s last name First Initial. Title of Book. Edition. Place of publication: Publisher; Year of publication.

Example: Smith J. Biology: A Textbook. 2nd ed. New York: Oxford University Press; 2010.

Example: (Johnson 2014: 27)

Reference List Citation: Author’s last name First Initial. Title of Article. Abbreviated Title of Journal. Year of publication;Volume(Issue):Page Numbers.

Example: Johnson S. The role of dopamine in addiction. J Neurosci. 2014;34(8): 2262-2272.

Example: (Brown 2018: 10)

Reference List Citation: Author’s last name First Initial. Title of Paper. Paper presented at: Name of Conference; Date of Conference; Place of Conference.

Example: Brown R. The impact of social media on mental health. Paper presented at: Annual Meeting of the American Psychological Association; August 2018; San Francisco, CA.

Example: (World Health Organization 2020: para. 2)

Reference List Citation: Author’s last name First Initial. Title of Webpage. Name of Website. URL. Published date. Accessed date.

Example: World Health Organization. Coronavirus disease (COVID-19) pandemic. WHO website. https://www.who.int/emergencies/disease-coronavirus-2019. Updated August 17, 2020. Accessed September 5, 2021.

Example: (Smith 2019: para. 5)

Reference List Citation: Author’s last name First Initial. Title of Article. Title of Newspaper or Magazine. Year of publication; Month Day:Page Numbers.

Example: Smith K. New study finds link between exercise and mental health. The New York Times. 2019;May 20: A6.

Purpose of Research Paper Citation

The purpose of citing sources in a research paper is to give credit to the original authors and acknowledge their contribution to your work. By citing sources, you are also demonstrating the validity and reliability of your research by showing that you have consulted credible and authoritative sources. Citations help readers to locate the original sources that you have referenced and to verify the accuracy and credibility of your research. Additionally, citing sources is important for avoiding plagiarism, which is the act of presenting someone else’s work as your own. Proper citation also shows that you have conducted a thorough literature review and have used the existing research to inform your own work. Overall, citing sources is an essential aspect of academic writing and is necessary for building credibility, demonstrating research skills, and avoiding plagiarism.

Advantages of Research Paper Citation

There are several advantages of research paper citation, including:

• Giving credit: By citing the works of other researchers in your field, you are acknowledging their contribution and giving credit where it is due.
• Strengthening your argument: Citing relevant and reliable sources in your research paper can strengthen your argument and increase its credibility. It shows that you have done your due diligence and considered various perspectives before drawing your conclusions.
• Demonstrating familiarity with the literature : By citing various sources, you are demonstrating your familiarity with the existing literature in your field. This is important as it shows that you are well-informed about the topic and have done a thorough review of the available research.
• Providing a roadmap for further research: By citing relevant sources, you are providing a roadmap for further research on the topic. This can be helpful for future researchers who are interested in exploring the same or related issues.
• Building your own reputation: By citing the works of established researchers in your field, you can build your own reputation as a knowledgeable and informed scholar. This can be particularly helpful if you are early in your career and looking to establish yourself as an expert in your field.

About the author

Muhammad Hassan

Researcher, Academic Writer, Web developer

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Citation Guides and Style Manuals

• General Citation Guides
• Data Citation
• Citing Generative AI
• Student Papers
• Professional Papers
• Annotated Bibliographies
• Cite Articles
• Cite Websites
• Parts of a Citation

Four Components of APA Citations, 7th edition

Every idea that is not your own or common knowledge should have two citations:   in-text citation  (Author-Date) at the spot in your paper where you discuss it, and a complete citation in the  References  page (Author. (Date). Title. Source) following the body of your paper. 

What is "common knowledge"? Example: George Washington was the first elected President of the United States of America. You don't have to cite this. 

If information is missing, check here .

Source: Publication Manual 9.4-9.37, p.  p. 283-301.

• Formatting Author Names
• Multiple Authors
• Organizational Authors
• Editor(s) and Other Roles

The first  element of every APA reference is the author. Sometimes the author is a corporation or group.

Author .  (Date). Title. Source.

Sources:  Publication Manual , 9.7-9.12;  APA Style: Elements of Reference List Entries ;  APA Style: Missing Reference Information

List author's last name, comma, then initials, with a space between them. Don't list their full first or middle name.

• William Shakespeare  →  Shakespeare, W.
• Louisa May Alcott  →  Alcott, L. M.
• Leonardo da Vinci  →  da Vinci, L.
• George W. Ogden  →  Ogden, G. W.
• Jean-Luc Lebrun  →  Lebrun, J.-L.

Don't use courtesy or academic titles in  citations. Do include suffixes such as Jr., Sr., III, etc.

• Sir Arthur Conan Doyle  →  Doyle, A. C.
• Dr. Martin Luther King, Jr.  →  King, M. L., Jr.
• Ronald C. White, Sr.  →  White, R. C., Sr.

Some authors use non-standard capitalization. Retain that capitalization.

• bell hooks  →  hooks, b.
• danah boyd  →  boyd, d.

Some names, such as religious or royal titles, may be listed differently in the References page according to custom.

• Pope Francis
• Queen Raina

List authors in the order they appear on the source. A comma should separate each author's name, and an ampersand (&) should precede the last author's name. Spell out up to twenty authors' names in the reference list in this format:

Two Authors:

(Smith & Miller, 2009) (In-text citation)

Smith, J., & Miller, W. C. (Date). Title. Source. (References list)

Three to Twenty Authors:

(Smith et al., 2009) (In-text citation)

Smith, J., Jones, B. E., Brown, K. E., & Doe, J. (Date). Title. Source. (References list -- list all authors).

21+ Authors:

References list -- include first 19 authors, then three ellipsis points (. . .),  then  last author (no ampersand). 

Smith, J., Jones, B. E., Brown, K. E., Doe, J., Chan, L., Garcia, S. M., White, C-G., Fernández, J., Ahmed, A. J., Zhào, L., Cohen, D., Watanabe, K., Kim, K., Del Rosario, J., Yilmaz, P. K., Nguyễn, T., Wilson, T. H., Wang, W., Kahale, A. ... Zhang, Z. Z. (Date). Title. Source.

Some resources may be attributed to a group or organization, instead of specific person(s). In this case, give the group or organization name. You may use a common abbreviation beginning with the second in-text citation:

First In-Text Citation:

(Centers for Disease Control and Prevention [CDC], 2019)

Subsequent In-Text Citations:

(CDC, 2019)

References List::

For government authors with hierarchy (U.S. Department of Health and Human Services, National Institutes of Health, National Library of Medicine), use directly responsible agency:

National Library of Medicine. (n.d.). A brief history of the NLM. https://www.nlm.nih.gov/about/briefhistory.html

(National Library of Medicine, n.d.)

If corporate author is also the publisher, omit publisher.

American Psychological Association. (2020).  Publication manual of the American Psychological Association  (7th ed.). https://doi.org/10.1037/0000165-000

(American Psychological Association [APA], 2020)

(APA, 2020)

Book Editors

If a book is compiled by an editor (usually specified on cover or title page), list names as usual,, then  (Ed.)  or  (Eds.) , to signify editor or editors. This abbreviation is not included in the in-text citation.

Forrester, D. A. (Ed.). (2016).  Nursing's greatest leaders: A history of activism . Springer.

(Forrester, 2016)

Audiovisual "Authors"

Audiovisual materials may have different people for author element. Common examples include director, host, executive producer, musical artist, composer, or a producer. Include parenthetical clarification of role.

Jacquet, L. (Director). (2005).  March of the penguins  [Film]. National Geographic Films; Bonne Pioche.

(Jacquet, 2005)

Wilson, T. V., & Frey, H. (Hosts). (2008–present).  Stuff you missed in history class  [Audio podcast]. Stuff Media. https://www.missedinhistory.com/

(Wilson & Frey, 2008–present)

The Monkees. (1966). I'm a believer [Song]. On  More of the Monkees . Colgems.

(The Monkees, 1966)

If you know both the real name of an author and the username, and the username is credited on the work, list both.

DeGeneres, E. [@TheEllenShow]. (2014, March 2).  If only Bradley's arm was longer. Best photo ever. #oscars  [Image attached] [Tweet]. Twitter. https://twitter.com/theellenshow/status/440322224407314432

(DeGeneres, 2014)

If you only have a username, use that for the author.

Motherboard. (2010, August 6).  The effects of the atomic bomb on Hiroshima and Nagasaki  [Video]. YouTube. https://www.youtube.com/watch?v=QUvM2uQR1cA

(Motherboard, 2010)

If no author or editor is listed, start reference with the title, followed by date, and continue reference as normal. Remember, author can be a company, organization, or group author, and that should be used as author if provided.  Check very carefully to ensure that there is no organization that can be used as the author!

Title.  (Date). Source.

Oxford English dictionary  (2nd ed.). (1989). Clarendon Press.

Appeal to authority . (n.d.). Logical Fallacies. https://www.logicalfallacies.org/appeal-to-authority.html

For in-text citations, use  title, followed by the date. If  title is long, you may abbreviate to first few words. Book titles are italicized; journal or website articles are put in quotes.

( Oxford English Dictionary , 1989).

("Appeal to Authority," n.d.)

If item is  expressly  attributed to "Anonymous," list that as author:

Anonymous. (2006).  Go ask Alice . Simon Pulse.

(Anonymous, 2006)

• Retrieval Date

The second element of an APA reference is the date. Most citations only need the year in parentheses, followed by a period.

Author .  (Date) .  Title. Source.

Source:  Publication Manual , 9.13-9-17;  APA Style: Elements of Reference List Entries ;  APA Style: Missing Reference Information

Most sources (such as books, journal articles, and films) only require the year. For magazines, newsletters, newspapers, social media, YouTube videos, blog posts, etc., provide the full date.

Valinsky, J. (2019, October 8).  Instagram dark mode is here . CNN. https://www.cnn.com/2019/10/08/tech/instagram-dark-mode-trnd/index.html (References list entry)

In-text citations, however, only include the year. 

(Valinksy, 2019)

If an item does not have a discernible date, you may use  n.d.  as the date (for  no date ); do not simply leave out the date. For webpages, do not use a general copyright date given for the website. Look for a specific created, updated, or modified date for the page or document you are using.

Santa Fe College. (n.d.).  Fifty years to first . https://www.sfcollege.edu/about/50/

(Santa Fe College, n.d.)

In APA 7th, most online resources don't need retrieval dates.

The exceptions are resources that may change substantially before readers can access them ( Publication Manual   Chapter 10, examples 33,47,104,106). See also APA Style Blog . For these, you may add a retrieval date prior to the URL. Examples include wikis, dictionary entries, Twitter profiles, webpages that update frequently, etc.

Centers for Disease Control and Prevention. (2019, October 3).  Outbreak of lung injury associated with e-cigarette use, or vaping . Retrieved October 8, 2019, from https://www.cdc.gov/tobacco/basic_information/e-cigarettes/severe-lung-disease.html

(Centers for Disease Control and Prevention, 2019)

• Capitalization
• Punctuation
• Item Clarification

The third element of an APA citation is the title. For a standalone work (such as a book), the title is in italics. For something that is part of a larger work (such as a journal article), the source (such as New England Journal of Medicine ), not the title of the article or "part," is italicized.

Author. (Date).  Title  OR Title . Source.

Sources:  Publication Manual , 9.18-9.22;  APA Style: Elements of Reference List Entries ;  APA Style: Missing Reference Information

APA requires you to only capitalize certain words in a title. You should capitalize the following:

• The first word of the title
• The first word of the subtitle, usually directly after a colon  :
• Any  proper nouns  (places, people, organizations, etc.)
• All significant words in a journal/website title

Examples of Correct Capitalization:

• Aces  high:  The  heroic saga of the two top-scoring  American  aces of  World War II
• Can’t  remember what  I  forgot:  The  good news from the front lines of memory research
• The  elements of library research:  What  every student needs to know
• The FBI :  A  history
• Introduction  to research in the health sciences
• Journal  of  Studies  on  Alcohol  and  Drugs  [journal title]
• The Oxford  guide to library research
• Preparing  research articles
• Publication  manual of the  American Psychological Association

See also: Publication Manual  6.13-6.21, pp. 165-170, and apastyle .

APA requires you to  italicize  the titles of stand-alone works:

If you are citing something that is part of a bigger work, you  do not  italicize the titles:

• chapters in books
• title of entry in a reference book
• articles from journals, magazines, or newspapers

Source:  A Tale of Two Reference Formats  [APA Style]

If a title ends with a non-period punctuation mark (such as a question mark or an exclamation mark), use that as the ending punctuation without adding a period.

Jacobs, J. B. (2002).  Can gun control work?  Oxford University Press.

(Jacobs, 2002)

If the title uses an em dash instead of colons for a subtitle distinction, preserve those.

Jain, S. K., Singh, B. P., & Singh, R. P. (2004). Indian homemade firearm—A technical review.  Forensic Science International ,  144 (1), 11–18. https://doi.org/10.1016/j.forsciint.2004.03.001

(Jain et al., 2004)

Format Clarification

If the information you are citing is not a routine format, use square brackets after the title to clarify. Common examples include:

CrashCourse. (2019, September 27).  Natural language processing: Crash course AI #7  [Video]. YouTube. https://www.youtube.com/watch?v=oi0JXuL19TA

(Crash Course, 2017)

Edition/Volume Clarification

For some books, you will need to add the edition or the volume used after the title, in parentheses.

American Psychological Association. (2020).  Publication manual of the American Psychological Association  (7th ed.). https://doi.org/10.1037/0000165-000

(American Psychological Association, 2020)

In very rare cases, you may be using a source without a specific title. This may be something like a social media post, untitled artwork, or a Google map. In the title component, include a description in brackets; try to include the medium in the description if possible.

Google. (n.d.). [Google Maps directions for driving from Gainesville, FL, to Miami, FL]. Retrieved October 8, 2019, from https://goo.gl/maps/jkV9HNbBw6nx9iLc8

The final element of an APA reference is the source, which is the retrieval information. Source means "Where can I retrieve this work? 

For something that is part of a larger work (such as a journal article), the source, not the title, is in italics..

Author. (Date). Title.  Source.

The components of a source may change depending on the format of the work you are citing.

Sources:  Publication Manual , 9.23-9.37;  APA Style: Elements of Reference List Entries ;  APA Style: Missing Reference Information

If you are citing a specific page or section of a source, you may cite the page or section in the in-text citation, but not  in the References list:

(Armstrong, 2015, pp. 3-17) (in-text citation)

Publication Manual 8.13, p. 264.

The source for a book is the  publisher . City of publication is not needed.

Hain, P. (2018).  Mandela: His essential life.  Rowman & Littlefield. (References list at end of paper)

(Hain, 2018) (In-text citation)

If you are using a portion of a book, such as a chapter in an edited book, the source also includes the information from the  book being used .

Johnson, P. (2019). Efforts to ban Harper Lee's  To Kill a Mockingbird . In R.C. Evans (Ed.),  Censored & banned literature  (pp. 169–186). Salem Press.

(Johnson, 2019)

Article sources typically include the  journal, volume, issue, page numbers , and  DOI (Digital Object Identifier). . Spell out the entire journal title; do not abbreviate it. The journal title and volume should be  italicized .

Steckler, R. A., & Bartkowski, J. P. (2018). "God is my first aid kit": The negotiation of health and illness among Christian Scientists.  Journal for the Scientific Study of Religion, 57 (3), 585–603. https://doi.org/10.1111/jssr.12533

(Steckler & Bartkowski, 2018) (In-text citation).

If you are  missing  any of this information, omit it. This example does not have an issue number or a DOI.

Tremblay, M. S., Inman, J. W., & Willms, J. D. (2000). The relationship between physical activity, self-esteem, and academic achievement in 12-year-old children.  Pediatric Exercise Science, 12 , 312–323.

(Tremblay et al., 2000)

If an article has an  article number , include it.

Van Hedger, S. C., Heald, S. L. M., & Nusbaum, H. C. (2019). Absolute pitch can be learned by some adults.  PLOS One, 14 (9), Article e0223047. https://doi.org/10.1371/journal.pone.0223047

(Van Hedger, 2019)

If an article is  freely available  online and does not have a DOI, you may choose to add the URL to the full-text.

Rosener, A., Frigo, E., Ponischil, S., Bélanger, A., Rander, J., & Salazer, E. (2019, September 18). Leading from the center: Reimagining feedback conversations at an academic library.  In the Library with a Lead Pipe.  http://www.inthelibrarywiththeleadpipe.org/2019/reimagining-feedback/

(Rosener et al., 2019)

Database Information

Usually you don't include the name of a library database used to find your reference.  Only  include the name  if the source you are using is exclusive to that database. A few library databases, including Cochrane Library, and Opposing Viewpoints, have information exclusive to that database.

Denissen, S., Staring, W., Kunkel, D., Pickering, R. M., Lennon, S., Geurts, A. C. H., Weerdesteyn, V., & Verheyden, G. S. A. F. (2019). Interventions for preventing falls in people after stroke.  Cochrane Database of Systematic Reviews . https://doi.org/10.1002/14651858.CD008728.pub3

(Denissen et al., 2019)

Locating DOIs

APA requires you to provide DOIs if available when citing a journal article. DOI stands for Digital Object Identifier. DOIs serve as a permanent link to electronic content. If an article has a DOI, you can give that information and easily direct readers to your references. DOIs are commonly found in the database record, the journal's page for the article, or on the first page of the article itself. If you can't find it here, go to crossref.org and select "search metadata." If you can't find a DOI in any of these places, it is likely that the article doesn't have one.

A DOI will often be found as a string of numbers and slashes (possibly with letters) that begins with  10.  You need to change this number to a complete URL beginning with "https//," and put this at the end of your References list citation.

Once you have a DOI, you can plug it in and get the complete URL to put in your References list entry.  DOI.org  is recommended. Input the entire DOI, and you will be directed to the main article page.

When you plug this number in, you will find a reference with a DOI in the form of a complete URL: https://doi.org/10.4037/ajcc2010651  A DOI should be cited as a complete URL. For more guidance on DOI's, see APA Style: DOIs-URLs  or the Publication Manual,  9.35-9.37, p. 298-301.

"Webpages and websites" is a  catchall category, including online resources not fitting into a specific category such as a book or journal article..  These are discussed in the Publication Manual   9.2, p. 282, and  examples are shown in 10.15 and10.16, p. 348-352. Online examples appear on  apastyle .

Internet sources typically include the  website  on which the source is located and the  URL . If the author and the website title are identical, omit the website title. You may elect to add a retrieval date to the URL if the information is expected to change.

Leibsohn, D., & Mundy, B. E. (n.d.).  Surveying the Pre-Columbian . Vistas: Visual Culture in Spanish America, 1520-1620. https://vistas.ace.fordham.edu/themes/pre-columbian-surveying/

(Leibsohn & Mundy, n.d.)

Royal Collection Trust. (n.d.).  Albert's life and times . https://albert.rct.uk/explore#/prince_alberts_life_and_times

(Royal Collection Trust, n.d.)

Levine, E. (1936).  Amateur contest for children Final eliminations, Sept. 24, 1936  [Image]. Library of Congress. https://www.loc.gov/item/97502865/

(Levine, 1936)

Feldman, J. (2019, October 9).  Dogs can help you live longer, as if you needed another reason to get one . HuffPost. https://www.huffpost.com/entry/dogs-help-live-longer_l_5d9cceeee4b02c9da03fd45c

(Feldman, 2019)

U.S. Department of State. (2019, April 9).  Afghanistan travel advisory . Retrieved October 9, 2019 from https://travel.state.gov/content/travel/en/traveladvisories/traveladvisories/afghanistan-advisory.html

(U.S. Department of State, 2019)

If a URL is excessively long, you may use a URL shortener.

American Library Association. (n.d.).  Performance of or showing films in the classroom . http://bit.ly/2M2hc7g

(American Library Association, n.d.)

Film and Television

The source for film and television is typically the  production company . Multiple production companies are separated by semicolons. For online films/television, you may choose to add a URL.

Boyle, D. (Director). (2008).  Slumdog millionaire  [Film]. Celador Films; Film4.

(Boyle, 2008)

Macdonald, K., Burk, B., Carpenter, B., King, S., & Abrams, J. J. (2016).  11.22.63  [TV series]. Carpenter B.; Bad Robot Productions; Warner Bros. Television. http://www.hulu.com/112263

(Macdonald et al., 2016)

Online Videos

Online videos follow the same guidelines for Internet sources. The source component consists of the  website  and the  URL .

Karim, J. [jawed]. (2005, April 23).  Me at the zoo  [Video]. YouTube. https://www.youtube.com/watch?v=jNQXAC9IVRw

(Karim, 2005)

Items with no source are considered personal communication and have in-text citations only ; there will be no references list entry. This also includes items that are not retrievable by the reader. Examples of personal communication include emails, personal interviews, live speeches, etc.

(J. Sasser, personal communication, October 9, 2019)

• << Previous: Cite Websites
• Last Updated: Feb 26, 2024 12:42 PM
• URL: https://libguides.wku.edu/stylewrite

• USC Libraries
• Research Guides

Organizing Your Social Sciences Research Paper

• 11. Citing Sources
• Purpose of Guide
• Design Flaws to Avoid
• Independent and Dependent Variables
• Glossary of Research Terms
• Reading Research Effectively
• Narrowing a Topic Idea
• Broadening a Topic Idea
• Extending the Timeliness of a Topic Idea
• Academic Writing Style
• Choosing a Title
• Making an Outline
• Paragraph Development
• Research Process Video Series
• Executive Summary
• The C.A.R.S. Model
• Background Information
• The Research Problem/Question
• Theoretical Framework
• Citation Tracking
• Content Alert Services
• Evaluating Sources
• Primary Sources
• Secondary Sources
• Tiertiary Sources
• Scholarly vs. Popular Publications
• Qualitative Methods
• Quantitative Methods
• Insiderness
• Using Non-Textual Elements
• Limitations of the Study
• Common Grammar Mistakes
• Writing Concisely
• Avoiding Plagiarism
• Footnotes or Endnotes?
• Further Readings
• Generative AI and Writing
• USC Libraries Tutorials and Other Guides
• Bibliography

A citation is a formal reference to a published or unpublished source that you consulted and obtained information from while writing your research paper. It refers to a source of information that supports a factual statement, proposition, argument, or assertion or any quoted text obtained from a book, article, web site, or any other type of material . In-text citations are embedded within the body of your paper and use a shorthand notation style that refers to a complete description of the item at the end of the paper. Materials cited at the end of a paper may be listed under the heading References, Sources, Works Cited, or Bibliography. Rules on how to properly cite a source depends on the writing style manual your professor wants you to use for the class [e.g., APA, MLA, Chicago, Turabian, etc.]. Note that some disciplines have their own citation rules [e.g., law].

Citations: Overview. OASIS Writing Center, Walden University; Research and Citation. The Writing Lab and The OWL. Purdue University; Citing Sources. University Writing Center, Texas A&M University.

Reasons for Citing Your Sources

Reasons for Citing Sources in Your Research Paper

English scientist, Sir Isaac Newton, once wrote, "If I have seen further, it is by standing on the shoulders of giants.”* Citations support learning how to "see further" through processes of intellectual discovery, critical thinking, and applying a deliberate method of navigating through the scholarly landscape by tracking how cited works are propagated by scholars over time and the subsequent ways this leads to the devarication of new knowledge.

Listed below are specific reasons why citing sources is an important part of doing good research.

• Shows the reader where to find more information . Citations help readers expand their understanding and knowledge about the issues being investigated. One of the most effective strategies for locating authoritative, relevant sources about a research problem is to review materials cited in studies published by other authors. In this way, the sources you cite help the reader identify where to go to examine the topic in more depth and detail.
• Increases your credibility as an author . Citations to the words, ideas, and arguments of scholars demonstrates that you have conducted a thorough review of the literature and, therefore, you are reporting your research results or proposing recommended courses of action from an informed and critically engaged perspective. Your citations offer evidence that you effectively contemplated, evaluated, and synthesized sources of information in relation to your conceptualization of the research problem.
• Illustrates the non-linear and contested nature of knowledge creation . The sources you cite show the reader how you characterized the dynamics of prior knowledge creation relevant to the research problem and how you managed to effectively identify the contested relationships between problems and solutions proposed among scholars. Citations don't just list materials used in your study, they tell a story about how prior knowledge-making emerged from a constant state of creation, renewal, and transformation.
• Reinforces your arguments . Sources cited in your paper provide the evidence that readers need to determine that you properly addressed the “So What?” question. This refers to whether you considered the relevance and significance of the research problem, its implications applied to creating new knowledge, and its importance for improving practice. In this way, citations draw attention to and support the legitimacy and originality of your own ideas.
• Demonstrates that you "listened" to relevant conversations among scholars before joining in . Your citations tell the reader where you developed an understanding of the debates among scholars. They show how you educated yourself about ongoing conversations taking place within relevant communities of researchers before inserting your own ideas and arguments. In peer-reviewed scholarship, most of these conversations emerge within books, research reports, journal articles, and other cited works.
• Delineates alternative approaches to explaining the research problem . If you disagree with prior research assumptions or you believe that a topic has been understudied or you find that there is a gap in how scholars have understood a problem, your citations serve as the source materials from which to analyze and present an alternative viewpoint or to assert that a different course of action should be pursued. In short, the materials you cite serve as the means by which to argue persuasively against long-standing assumptions propagated in prior studies.
• Helps the reader understand contextual aspects of your research . Cited sources help readers understand the specific circumstances, conditions, and settings of the problem being investigated and, by extension, how your arguments can be fully understood and assessed. Citations place your line of reasoning within a specific contextualized framework based on how others have studied the problem and how you interpreted their findings in support of your overall research objectives.
• Frames the development of concepts and ideas within the literature . No topic in the social and behavioral sciences rests in isolation from research that has taken place in the past. Your citations help the reader understand the growth and transformation of the theoretical assumptions, key concepts, and systematic inquiries that emerged prior to your engagement with the research problem.
• Underscores what sources were most important to you . Your citations represent a set of choices made about what you determined to be the most important sources for understanding the topic. They not only list what you discovered, but why it matters and how the materials you chose to cite fit within the broader context of your research design and arguments. As part of an overall assessment of the study’s validity and reliability , the choices you make also helps the reader determine what research may have been excluded.
• Provides evidence of interdisciplinary thinking . An important principle of good research is to extend your review of the literature beyond the predominant disciplinary space where scholars have examined a topic. Citations provide evidence that you have integrated epistemological arguments, observations, and/or the methodological strategies from other disciplines into your paper, thereby demonstrating that you understand the complex, interconnected nature of contemporary research problems.
• Supports critical thinking and independent learning . Evaluating the authenticity, reliability, validity, and originality of prior research is an act of interpretation and introspective reasoning applied to assessing whether a source of information will contribute to understanding the problem in ways that are persuasive and align with your overall research objectives. Reviewing and citing prior studies represents a deliberate act of critically scrutinizing each source as part of your overall assessment of how scholars have confronted the research problem.
• Honors the achievements of others . As Susan Blum recently noted,** citations not only identify sources used, they acknowledge the achievements of scholars within the larger network of research about the topic. Citing sources is a normative act of professionalism within academe and a way to highlight and recognize the work of scholars who likely do not obtain any tangible benefits or monetary value from their research endeavors.

*Vernon. Jamie L. "On the Shoulder of Giants." American Scientist 105 (July-August 2017): 194.

**Blum, Susan D. "In Defense of the Morality of Citation.” Inside Higher Ed , January 29, 2024.

Aksnes, Dag W., Liv Langfeldt, and Paul Wouters. "Citations, Citation Indicators, and Research Quality: An Overview of Basic Concepts and Theories." Sage Open 9 (January-March 2019): https://doi.org/10.1177/2158244019829575; Blum, Susan Debra. My Word!: Plagiarism and College Culture . Ithaca, NY: Cornell University Press, 2009; Bretag, Tracey., editor. Handbook of Academic Integrity . Singapore: Springer Singapore, 2020; Ballenger, Bruce P. The Curious Researcher: A Guide to Writing Research Papers . 7th edition. Boston, MA: Pearson, 2012; D'Angelo, Barbara J. "Using Source Analysis to Promote Critical Thinking." Research Strategies 18 (Winter 2001): 303-309; Mauer, Barry and John Venecek. “Scholarship as Conversation.” Strategies for Conducting Literary Research, University of Central Florida, 2021; Why Cite? Poorvu Center for Teaching and Learning, Yale University; Citing Information. The Writing Center. University of North Carolina; Harvard Guide to Using Sources. Harvard College Writing Program. Harvard University; Newton, Philip. "Academic Integrity: A Quantitative Study of Confidence and Understanding in Students at the Start of Their Higher Education."  Assessment and Evaluation in Higher Education 41 (2016): 482-497; Referencing More Effectively. Academic Skills Centre. University of Canberra; Using Sources. Yale College Writing Center. Yale University; Vosburgh, Richard M. "Closing the Academic-practitioner Gap: Research Must Answer the “SO WHAT” Question." H uman Resource Management Review 32 (March 2022): 100633; When and Why to Cite Sources. Information Literacy Playlists, SUNY, Albany Libraries.

Structure and Writing Style

Referencing your sources means systematically showing what information or ideas you acquired from another author’s work, and identifying where that information come from . You must cite research in order to do research, but at the same time, you must delineate what are your original thoughts and ideas and what are the thoughts and ideas of others. Citations help achieve this. Procedures used to cite sources vary among different fields of study. If not outlined in your course syllabus or writing assignment, always speak with your professor about what writing style for citing sources should be used for the class because it is important to fully understand the citation style to be used in your paper, and to apply it consistently. If your professor defers and tells you to "choose whatever you want, just be consistent," then choose the citation style you are most familiar with or that is appropriate to your major [e.g., use Chicago style if its a history class; use APA if its an education course; use MLA if it is literature or a general writing course].

GENERAL GUIDELINES

1. Are there any reasons I should avoid referencing other people's work? No. If placed in the proper context, r eferencing other people's research is never an indication that your work is substandard or lacks originality. In fact, the opposite is true. If you write your paper without adequate references to previous studies, you are signaling to the reader that you are not familiar with the literature on the topic, thereby, undermining the validity of your study and your credibility as a researcher. Including references in academic writing is one of the most important ways to demonstrate your knowledge and understanding of how the research problem has been addressed. It is the intellectual packaging around which you present your thoughts and ideas to the reader.

2. What should I do if I find out that my great idea has already been studied by another researcher? It can be frustrating to come up with what you believe is a great topic only to find that it's already been thoroughly studied. However, do not become frustrated by this. You can acknowledge the prior research by writing in the text of your paper [see also Smith, 2002], then citing the complete source in your list of references. Use the discovery of prior studies as an opportunity to demonstrate the significance of the problem being investigated and, if applicable, as a means of delineating your analysis from those of others [e.g., the prior study is ten years old and doesn't take into account new variables]. Strategies for responding to prior research can include: stating how your study updates previous understandings about the topic, offering a new or different perspective, applying a different or innovative method of data gathering, and/or describing a new set of insights, guidelines, recommendations, best practices, or working solutions.

3. What should I do if I want to use an adapted version of someone else's work? You still must cite the original work. For example, maybe you are using a table of statistics from a journal article published in 1996 by author Smith, but you have altered or added new data to it. Reference the revised chart, such as, [adapted from Smith, 1996], then cite the complete source in your list of references. You can also use other terms in order to specify the exact relationship between the original source and the version you have presented, such as, "based on data from Smith [1996]...," or "summarized from Smith [1996]...." Citing the original source helps the reader locate where the information was first presented and under what context it was used as well as to evaluate how effectively you applied it to your own research.

4. What should I do if several authors have published very similar information or ideas? You can indicate that the idea or information can be found in the works of others by stating something similar to the following example: "Though many scholars have applied rational choice theory to understanding economic relations among nations [Smith, 1989; Jones, 1991; Johnson, 1994; Anderson, 2003], little attention has been given to applying the theory to examining the influence of non-governmental organizations in a globalized economy." If you only reference one author or only the most recent study, then your readers may assume that only one author has published on this topic, or more likely, they will conclude that you have not conducted a thorough literature review. Referencing all relevant authors of prior studies gives your readers a clear idea of the breadth of analysis you conducted in preparing to study the research problem. If there has been a significant number of prior studies on the topic, describe the most comprehensive and recent works because they will presumably discuss and reference the older studies. However, note in your review of the literature that there has been significant scholarship devoted to the topic so the reader knows that you are aware of the numerous prior studies.

5. What if I find exactly what I want to say in the writing of another researcher? In the social sciences, the rationale in duplicating prior research is generally governed by the passage of time, changing circumstances or conditions, or the emergence of variables that necessitate a new investigation . If someone else has recently conducted a thorough investigation of precisely the same research problem that you intend to study, then you likely will have to revise your topic, or at the very least, review this literature to identify something new to say about the problem. However, if it is someone else's particularly succinct expression, but it fits perfectly with what you are trying to say, then you can quote from the author directly, referencing the source. Identifying an author who has made the exact same point that you want to make can be an opportunity to add legitimacy to, as well as reinforce the significance of, the research problem you are investigating. The key is to build on that idea in new and innovative ways. If you are not sure how to do this, consult with a librarian .

6. Should I cite a source even if it was published long ago? Any source used in writing your paper should be cited, regardless of when it was written. However, in building a case for understanding prior research about your topic, it is generally true that you should focus on citing more recently published studies because they presumably have built upon the research of older studies. When referencing prior studies, use the research problem as your guide when considering what to cite. If a study from forty years ago investigated the same topic, it probably should be examined and considered in your list of references because the research may have been foundational or groundbreaking at the time, even if its findings are no longer relevant to current conditions or reflect current thinking [one way to determine if a study is foundational or groundbreaking is to examine how often it has been cited in recent studies using the "Cited by" feature of Google Scholar ]. However, if an older study only relates to the research problem tangentially or it has not been cited in recent studies, then it may be more appropriate to list it under further readings .

NOTE:   In any academic writing, you are required to identify which ideas, facts, thoughts, concepts, or declarative statements are yours and which are derived from the research of others. The only exception to this rule is information that is considered to be a commonly known fact [e.g., "George Washington was the first president of the United States"] or a statement that is self-evident [e.g., "Australia is a country in the Global South"]. Appreciate, however, that any "commonly known fact" is culturally constructed and shaped by social and aesthetical biases . If you are in doubt about whether or not a fact is considered to be widely understood knowledge, provide a supporting citation, or, ask your professor for clarification about how the statement should be cited.

Ballenger, Bruce P. The Curious Researcher: A Guide to Writing Research Papers . 7th edition. Boston, MA: Pearson, 2012; Blum, Susan Debra. My Word!: Plagiarism and College Culture . Ithaca, NY: Cornell University Press, 2009; Bretag, Tracey., editor. Handbook of Academic Integrity . Singapore: Springer Singapore, 2020; Carlock, Janine. Developing Information Literacy Skills: A Guide to Finding, Evaluating, and Citing Sources . Ann Arbor, MI: University of Michigan Press, 2020; Harvard Guide to Using Sources. Harvard College Writing Program. Harvard University; How to Cite Other Sources in Your Paper. The Structure, Format, Content, and Style of a Journal-Style Scientific Paper. Department of Biology. Bates College; Lunsford, Andrea A. and Robert Connors; The St. Martin's Handbook . New York: St. Martin's Press, 1989; Mills, Elizabeth Shown. Evidence Explained: Citing History Sources from Artifacts to Cyberspace . 3rd edition. Baltimore, MD: Genealogical Publishing Company, 2015; Research and Citation Resources. The Writing Lab and The OWL. Purdue University; Writing Tutorial Services, Center for Innovative Teaching and Learning. Indiana University; Why Cite? Poorvu Center for Teaching and Learning, Yale Univeraity.

Other Citation Research Guides

The following USC Libraries research guide can help you properly cite sources in your research paper:

• Citation Guide

The following USC Libraries research guide offers basic information on using images and media in research:

Listed below are particularly well-done and comprehensive websites that provide specific examples of how to cite sources under different style guidelines.

• Purdue University Online Writing Lab
• Southern Cross University Harvard Referencing Style
• University of Wisconsin Writing Center

This is a useful guide concerning how to properly cite images in your research paper.

• Colgate Visual Resources Library, Citing Images

This guide provides good information on the act of citation analysis, whereby you count the number of times a published work is cited by other works in order to measure the impact of a publication or author.

Measuring Your Impact: Impact Factor, Citation Analysis, and other Metrics: Citation Analysis [Sandy De Groote, University of Illinois, Chicago]

Automatic Citation Generators

The links below lead to systems where you can type in your information and have a citation compiled for you. Note that these systems are not foolproof so it is important that you verify that the citation is correct and check your spelling, capitalization, etc. However, they can be useful in creating basic types of citations, particularly for online sources.

• BibMe -- APA, MLA, Chicago, and Turabian styles
• DocsCite -- for citing government publications in APA or MLA formats
• EasyBib -- APA, MLA, and Chicago styles
• Son of Citation Machine -- APA, MLA, Chicago, and Turabian styles

NOTE:   Many companies that create the research databases the USC Libraries subscribe to, such as ProQuest , include built-in citation generators that help take the guesswork out of how to properly cite a work. When available, you should always utilize these features because they not only generate a citation to the source [e.g., a journal article], but include information about where you accessed the source [e.g., the database].

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• Next: Avoiding Plagiarism >>
• Last Updated: Mar 26, 2024 10:40 AM
• URL: https://libguides.usc.edu/writingguide

Citing sources: Overview

• Citation style guides

Manage your references

Use these tools to help you organize and cite your references:

• Citation Management and Writing Tools

If you have questions after consulting this guide about how to cite, please contact your advisor/professor or the writing and communication center .

Why citing is important

It's important to cite sources you used in your research for several reasons:

• To show your reader you've done proper research by listing sources you used to get your information
• To be a responsible scholar by giving credit to other researchers and acknowledging their ideas
• To avoid plagiarism by quoting words and ideas used by other authors
• To allow your reader to track down the sources you used by citing them accurately in your paper by way of footnotes, a bibliography or reference list

About citations

Citing a source means that you show, within the body of your text, that you took words, ideas, figures, images, etc. from another place.

Citations are a short way to uniquely identify a published work (e.g. book, article, chapter, web site).  They are found in bibliographies and reference lists and are also collected in article and book databases.

Citations consist of standard elements, and contain all the information necessary to identify and track down publications, including:

• author name(s)
• titles of books, articles, and journals
• date of publication
• page numbers
• volume and issue numbers (for articles)

Citations may look different, depending on what is being cited and which style was used to create them. Choose an appropriate style guide for your needs.  Here is an example of an article citation using four different citation styles.  Notice the common elements as mentioned above:

Author - R. Langer

Article Title - New Methods of Drug Delivery

Source Title - Science

Volume and issue - Vol 249, issue 4976

Publication Date - 1990

Page numbers - 1527-1533

American Chemical Society (ACS) style:

Langer, R. New Methods of Drug Delivery. Science 1990 , 249 , 1527-1533.

IEEE Style:

R. Langer, " New Methods of Drug Delivery," Science , vol. 249 , pp. 1527-1533 , SEP 28, 1990 .

American Psychological Association   (APA) style:

Langer, R. (1990) . New methods of drug delivery. Science , 249 (4976), 1527-1533.

Modern Language Association (MLA) style:

Langer, R. " New Methods of Drug Delivery." Science 249.4976 (1990) : 1527-33.

What to cite

You must cite:

• Facts, figures, ideas, or other information that is not common knowledge

Publications that must be cited include:  books, book chapters, articles, web pages, theses, etc.

Another person's exact words should be quoted and cited to show proper credit 

When in doubt, be safe and cite your source!

Avoiding plagiarism

Plagiarism occurs when you borrow another's words (or ideas) and do not acknowledge that you have done so. In this culture, we consider our words and ideas intellectual property; like a car or any other possession, we believe our words belong to us and cannot be used without our permission.

Plagiarism is a very serious offense. If it is found that you have plagiarized -- deliberately or inadvertently -- you may face serious consequences. In some instances, plagiarism has meant that students have had to leave the institutions where they were studying.

The best way to avoid plagiarism is to cite your sources - both within the body of your paper and in a bibliography of sources you used at the end of your paper.

Some useful links about plagiarism:

• MIT Academic Integrity Overview on citing sources and avoiding plagiarism at MIT.
• Avoiding Plagiarism From the MIT Writing and Communication Center.
• Plagiarism: What It is and How to Recognize and Avoid It From Indiana University's Writing Tutorial Services.
• Plagiarism- Overview A resource from Purdue University.
• Next: Citation style guides >>
• Last Updated: Jan 16, 2024 7:02 AM
• URL: https://libguides.mit.edu/citing

Educational resources and simple solutions for your research journey

Navigating the Maze (Part 1): What, When, and How to Cite in a Research Paper

In getting your manuscript accepted by a journal, you may have been annoyed by the journal’s insistence that you format the references in a certain style. At times, you may have wondered why the journal said that because as far as you could see, you  had  formatted the references in that style. This article will explain these intricacies; more importantly, it will tell you how citing sources is an integral part of research and how appropriate citations help you become part of (what was once referred to as the ‘invisible college’) a network of researchers working on a particular topic. In this article, the first of two in this series, we delve into what, when, and how to cite in a research paper.

“If I have seen further,” Isaac Newton wrote in a letter to Robert Hooke, “it is by standing on the shoulders of giants.” This was in 1675, and science has since become increasingly collaborative. You build on the work of other researchers, who, in turn, build on your work. And appropriate citation in research papers is a time-honoured way of acknowledging that debt. Citations in research papers are tokens through which you  show how your work is connected  to the work of other researchers.

The second purpose of citing a research paper is to indicate the  source of your information or facts . After all, only a small proportion of what we know is based on first-hand knowledge; we depend on others for the information we need, whether it is in the form of statistics, chemical and physical properties of substances, laws and regulations, or anything else. In all such cases, citations in research papers inform readers of the source of such information so that they can judge for themselves the credibility of that information and look into more details on how the information was obtained, sample size, geographic limitations if any, and so on.

How to cite in a research paper

Citations in research paper text can be in the form of numbers (often referred to as the Vancouver system) or may consist of the names of authors and the year of publication (the Harvard system). For example, “Persistent pain has numerous deleterious effects on physical, psychological, and social functioning and thereby contributes to deteriorating health-related quality of life. 3–6”  or “Culture has become an important aspect of foreign/second language (FL/L2) instruction (Brown, 2000).” When deciding how to cite in a research paper, check the style used by the journal to which you plan to submit your manuscript.

Incidentally, both  Vancouver and Harvard styles have minor variations , so trivial that you may have failed to notice them. For instance, take numbered citations in research papers: Should the numbers be superscripts or positioned normally (referred to as ‘in line’)? Should they be within brackets? If so, square brackets or round brackets? And, if at the end of a sentence, should the numbers be placed before the period (full stop) or after? All these forms are seen in the wild.

The Harvard system too has its quirks when it comes to citing a research paper: Should the names be separated from the year of publication with a comma or only with space? Should multiple citations – all within one pair of parentheses – be arranged alphabetically by the author? Chronologically? Chronologically but in reverse order, with the most recent source listed first? The Harvard system also uses the Latin abbreviation et al. (which means ‘and others’) to limit the number of authors that need to be listed; however, some journals set the abbreviation in italics (et al.) whereas other set it in normal type. Nor do the journals agree on when to use the abbreviation: For three or more authors? For seven or more authors? . . . Now you may realize what the journal meant when it asked you to follow its preferred style for adding citations in research papers.

What to cite in a research paper and when

Although it is expected that you will supply the sources of your information or even of opinions and observations that are not your own,  some categories of information and sources are ‘exempt’  as it were. For instance, widely known facts and observations do not require any citations in research papers, such as ‘the DNA is the material through which hereditary characters are transmitted from parents to their offspring’ or ‘Water boils at higher temperatures when under pressure.’

Although every citation in a research paper’s text has to have a matching reference in the list appended to the paper under the heading ‘References’ or ‘Sources cited’,  sources that are not publicly available are mentioned only in the text , without any matching reference. The reason is that the sources listed under references are expected to be available to all. Take the case of your own research. Assume that you have submitted a manuscript for possible publication in a journal and you wish to cite that as the source of some data: now, you cannot supply a regular citation because the paper is yet to be accepted, let alone published. In that case, you can give the name(s) of author(s), followed by the phrase ‘unpublished data’. No matching reference is given. However, if the manuscript in question has been accepted, use ‘in press’ or ‘forthcoming’ instead when citing the research paper and, in the references, mention the title of the manuscript and the name of the journal.

Similarly, if the source of information is an email message, a letter, or even personal conversation, mention the family name of the person in question, followed by the expression  ‘personal communication’  (or ‘pers. comm.’ if that is the journal’s preference) for citations in research papers.

It is also expected that you  cite only those documents that you have read for yourself . In rare cases, when you have not been able to do so and are going by what somebody else has cited, you are expected to mention  both  the sources and indicate that you have consulted only one, as in “The idea that spinach is a good source of iron is a myth that was born in the 1930s, due to a misplaced decimal point, causing the concentration to appear ten times higher than its real value (Hamblin, 1981, cited in Larsson, 1995).” Incidentally, please read the paper by Rekdal [1].

Self citation in research papers

As citations in research papers are being used a measure of impact – and therefore linked to promotions, tenure, funding, employment, and so on – researchers are tempted to cite their own research papers. At times, journals themselves expect that manuscripts being submitted to the journal in question will cite at least a few papers published in that journal so as to boost its impact factor. Although self citations (whether authors citing their own papers or papers published in the journals to which they are submitting their manuscripts) are acceptable as long as they are relevant,  excessive self citations need to be avoided .

But what is ‘excessive’ citation in research papers? Clarivate Analytics, the publishers of  Journal Citation Reports  (on which the impact factor is based) consider a  self-citation rate of 20% or less as typical of reputable journals .

As you can see, referencing and citing in research papers involve a great deal of mechanical details. One way to check whether these are handled correctly in your manuscript is to do a thorough submission readiness check that flags any discrepancies, departures from standard style, and mismatches between citations and references. Because the topic of citations and references is so full of details, we will cover references in Part 2 of this article.

Table of Contents

References:

• Rekdal O B. 2014. Academic urban legends. Social Studies of Science 44 : 638–654.

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13.1 Formatting a Research Paper

Learning objectives.

• Identify the major components of a research paper written using American Psychological Association (APA) style.
• Apply general APA style and formatting conventions in a research paper.

In this chapter, you will learn how to use APA style , the documentation and formatting style followed by the American Psychological Association, as well as MLA style , from the Modern Language Association. There are a few major formatting styles used in academic texts, including AMA, Chicago, and Turabian:

• AMA (American Medical Association) for medicine, health, and biological sciences
• APA (American Psychological Association) for education, psychology, and the social sciences
• Chicago—a common style used in everyday publications like magazines, newspapers, and books
• MLA (Modern Language Association) for English, literature, arts, and humanities
• Turabian—another common style designed for its universal application across all subjects and disciplines

While all the formatting and citation styles have their own use and applications, in this chapter we focus our attention on the two styles you are most likely to use in your academic studies: APA and MLA.

If you find that the rules of proper source documentation are difficult to keep straight, you are not alone. Writing a good research paper is, in and of itself, a major intellectual challenge. Having to follow detailed citation and formatting guidelines as well may seem like just one more task to add to an already-too-long list of requirements.

Following these guidelines, however, serves several important purposes. First, it signals to your readers that your paper should be taken seriously as a student’s contribution to a given academic or professional field; it is the literary equivalent of wearing a tailored suit to a job interview. Second, it shows that you respect other people’s work enough to give them proper credit for it. Finally, it helps your reader find additional materials if he or she wishes to learn more about your topic.

Furthermore, producing a letter-perfect APA-style paper need not be burdensome. Yes, it requires careful attention to detail. However, you can simplify the process if you keep these broad guidelines in mind:

• Work ahead whenever you can. Chapter 11 “Writing from Research: What Will I Learn?” includes tips for keeping track of your sources early in the research process, which will save time later on.
• Get it right the first time. Apply APA guidelines as you write, so you will not have much to correct during the editing stage. Again, putting in a little extra time early on can save time later.
• Use the resources available to you. In addition to the guidelines provided in this chapter, you may wish to consult the APA website at http://www.apa.org or the Purdue University Online Writing lab at http://owl.english.purdue.edu , which regularly updates its online style guidelines.

General Formatting Guidelines

This chapter provides detailed guidelines for using the citation and formatting conventions developed by the American Psychological Association, or APA. Writers in disciplines as diverse as astrophysics, biology, psychology, and education follow APA style. The major components of a paper written in APA style are listed in the following box.

These are the major components of an APA-style paper:

Body, which includes the following:

• Headings and, if necessary, subheadings to organize the content
• In-text citations of research sources
• References page

All these components must be saved in one document, not as separate documents.

The title page of your paper includes the following information:

• Title of the paper
• Author’s name
• Name of the institution with which the author is affiliated
• Header at the top of the page with the paper title (in capital letters) and the page number (If the title is lengthy, you may use a shortened form of it in the header.)

List the first three elements in the order given in the previous list, centered about one third of the way down from the top of the page. Use the headers and footers tool of your word-processing program to add the header, with the title text at the left and the page number in the upper-right corner. Your title page should look like the following example.

The next page of your paper provides an abstract , or brief summary of your findings. An abstract does not need to be provided in every paper, but an abstract should be used in papers that include a hypothesis. A good abstract is concise—about one hundred fifty to two hundred fifty words—and is written in an objective, impersonal style. Your writing voice will not be as apparent here as in the body of your paper. When writing the abstract, take a just-the-facts approach, and summarize your research question and your findings in a few sentences.

In Chapter 12 “Writing a Research Paper” , you read a paper written by a student named Jorge, who researched the effectiveness of low-carbohydrate diets. Read Jorge’s abstract. Note how it sums up the major ideas in his paper without going into excessive detail.

Write an abstract summarizing your paper. Briefly introduce the topic, state your findings, and sum up what conclusions you can draw from your research. Use the word count feature of your word-processing program to make sure your abstract does not exceed one hundred fifty words.

Depending on your field of study, you may sometimes write research papers that present extensive primary research, such as your own experiment or survey. In your abstract, summarize your research question and your findings, and briefly indicate how your study relates to prior research in the field.

Margins, Pagination, and Headings

APA style requirements also address specific formatting concerns, such as margins, pagination, and heading styles, within the body of the paper. Review the following APA guidelines.

Use these general guidelines to format the paper:

• Set the top, bottom, and side margins of your paper at 1 inch.
• Use double-spaced text throughout your paper.
• Use a standard font, such as Times New Roman or Arial, in a legible size (10- to 12-point).
• Use continuous pagination throughout the paper, including the title page and the references section. Page numbers appear flush right within your header.
• Section headings and subsection headings within the body of your paper use different types of formatting depending on the level of information you are presenting. Additional details from Jorge’s paper are provided.

Begin formatting the final draft of your paper according to APA guidelines. You may work with an existing document or set up a new document if you choose. Include the following:

• Your title page
• The abstract you created in Note 13.8 “Exercise 1”
• Correct headers and page numbers for your title page and abstract

APA style uses section headings to organize information, making it easy for the reader to follow the writer’s train of thought and to know immediately what major topics are covered. Depending on the length and complexity of the paper, its major sections may also be divided into subsections, sub-subsections, and so on. These smaller sections, in turn, use different heading styles to indicate different levels of information. In essence, you are using headings to create a hierarchy of information.

The following heading styles used in APA formatting are listed in order of greatest to least importance:

• Section headings use centered, boldface type. Headings use title case, with important words in the heading capitalized.
• Subsection headings use left-aligned, boldface type. Headings use title case.
• The third level uses left-aligned, indented, boldface type. Headings use a capital letter only for the first word, and they end in a period.
• The fourth level follows the same style used for the previous level, but the headings are boldfaced and italicized.
• The fifth level follows the same style used for the previous level, but the headings are italicized and not boldfaced.

Visually, the hierarchy of information is organized as indicated in Table 13.1 “Section Headings” .

Table 13.1 Section Headings

A college research paper may not use all the heading levels shown in Table 13.1 “Section Headings” , but you are likely to encounter them in academic journal articles that use APA style. For a brief paper, you may find that level 1 headings suffice. Longer or more complex papers may need level 2 headings or other lower-level headings to organize information clearly. Use your outline to craft your major section headings and determine whether any subtopics are substantial enough to require additional levels of headings.

Working with the document you developed in Note 13.11 “Exercise 2” , begin setting up the heading structure of the final draft of your research paper according to APA guidelines. Include your title and at least two to three major section headings, and follow the formatting guidelines provided above. If your major sections should be broken into subsections, add those headings as well. Use your outline to help you.

Because Jorge used only level 1 headings, his Exercise 3 would look like the following:

Citation Guidelines

In-text citations.

Throughout the body of your paper, include a citation whenever you quote or paraphrase material from your research sources. As you learned in Chapter 11 “Writing from Research: What Will I Learn?” , the purpose of citations is twofold: to give credit to others for their ideas and to allow your reader to follow up and learn more about the topic if desired. Your in-text citations provide basic information about your source; each source you cite will have a longer entry in the references section that provides more detailed information.

In-text citations must provide the name of the author or authors and the year the source was published. (When a given source does not list an individual author, you may provide the source title or the name of the organization that published the material instead.) When directly quoting a source, it is also required that you include the page number where the quote appears in your citation.

This information may be included within the sentence or in a parenthetical reference at the end of the sentence, as in these examples.

Epstein (2010) points out that “junk food cannot be considered addictive in the same way that we think of psychoactive drugs as addictive” (p. 137).

Here, the writer names the source author when introducing the quote and provides the publication date in parentheses after the author’s name. The page number appears in parentheses after the closing quotation marks and before the period that ends the sentence.

Addiction researchers caution that “junk food cannot be considered addictive in the same way that we think of psychoactive drugs as addictive” (Epstein, 2010, p. 137).

Here, the writer provides a parenthetical citation at the end of the sentence that includes the author’s name, the year of publication, and the page number separated by commas. Again, the parenthetical citation is placed after the closing quotation marks and before the period at the end of the sentence.

As noted in the book Junk Food, Junk Science (Epstein, 2010, p. 137), “junk food cannot be considered addictive in the same way that we think of psychoactive drugs as addictive.”

Here, the writer chose to mention the source title in the sentence (an optional piece of information to include) and followed the title with a parenthetical citation. Note that the parenthetical citation is placed before the comma that signals the end of the introductory phrase.

David Epstein’s book Junk Food, Junk Science (2010) pointed out that “junk food cannot be considered addictive in the same way that we think of psychoactive drugs as addictive” (p. 137).

Another variation is to introduce the author and the source title in your sentence and include the publication date and page number in parentheses within the sentence or at the end of the sentence. As long as you have included the essential information, you can choose the option that works best for that particular sentence and source.

Citing a book with a single author is usually a straightforward task. Of course, your research may require that you cite many other types of sources, such as books or articles with more than one author or sources with no individual author listed. You may also need to cite sources available in both print and online and nonprint sources, such as websites and personal interviews. Chapter 13 “APA and MLA Documentation and Formatting” , Section 13.2 “Citing and Referencing Techniques” and Section 13.3 “Creating a References Section” provide extensive guidelines for citing a variety of source types.

Writing at Work

APA is just one of several different styles with its own guidelines for documentation, formatting, and language usage. Depending on your field of interest, you may be exposed to additional styles, such as the following:

• MLA style. Determined by the Modern Languages Association and used for papers in literature, languages, and other disciplines in the humanities.
• Chicago style. Outlined in the Chicago Manual of Style and sometimes used for papers in the humanities and the sciences; many professional organizations use this style for publications as well.
• Associated Press (AP) style. Used by professional journalists.

References List

The brief citations included in the body of your paper correspond to the more detailed citations provided at the end of the paper in the references section. In-text citations provide basic information—the author’s name, the publication date, and the page number if necessary—while the references section provides more extensive bibliographical information. Again, this information allows your reader to follow up on the sources you cited and do additional reading about the topic if desired.

The specific format of entries in the list of references varies slightly for different source types, but the entries generally include the following information:

• The name(s) of the author(s) or institution that wrote the source
• The year of publication and, where applicable, the exact date of publication
• The full title of the source
• For books, the city of publication
• For articles or essays, the name of the periodical or book in which the article or essay appears
• For magazine and journal articles, the volume number, issue number, and pages where the article appears
• For sources on the web, the URL where the source is located

The references page is double spaced and lists entries in alphabetical order by the author’s last name. If an entry continues for more than one line, the second line and each subsequent line are indented five spaces. Review the following example. ( Chapter 13 “APA and MLA Documentation and Formatting” , Section 13.3 “Creating a References Section” provides extensive guidelines for formatting reference entries for different types of sources.)

In APA style, book and article titles are formatted in sentence case, not title case. Sentence case means that only the first word is capitalized, along with any proper nouns.

Key Takeaways

• Following proper citation and formatting guidelines helps writers ensure that their work will be taken seriously, give proper credit to other authors for their work, and provide valuable information to readers.
• Working ahead and taking care to cite sources correctly the first time are ways writers can save time during the editing stage of writing a research paper.
• APA papers usually include an abstract that concisely summarizes the paper.
• APA papers use a specific headings structure to provide a clear hierarchy of information.
• In APA papers, in-text citations usually include the name(s) of the author(s) and the year of publication.
• In-text citations correspond to entries in the references section, which provide detailed bibliographical information about a source.

Writing for Success Copyright © 2015 by University of Minnesota is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

How to Write a Research Paper: Parts of the Paper

• Choosing Your Topic
• Citation & Style Guides This link opens in a new window
• Critical Thinking
• Evaluating Information
• Parts of the Paper
• Writing Tips from UNC-Chapel Hill
• Librarian Contact

Parts of the Research Paper Papers should have a beginning, a middle, and an end. Your introductory paragraph should grab the reader's attention, state your main idea, and indicate how you will support it. The body of the paper should expand on what you have stated in the introduction. Finally, the conclusion restates the paper's thesis and should explain what you have learned, giving a wrap up of your main ideas.

1. The Title The title should be specific and indicate the theme of the research and what ideas it addresses. Use keywords that help explain your paper's topic to the reader. Try to avoid abbreviations and jargon. Think about keywords that people would use to search for your paper and include them in your title.

2. The Abstract The abstract is used by readers to get a quick overview of your paper. Typically, they are about 200 words in length (120 words minimum to  250 words maximum). The abstract should introduce the topic and thesis, and should provide a general statement about what you have found in your research. The abstract allows you to mention each major aspect of your topic and helps readers decide whether they want to read the rest of the paper. Because it is a summary of the entire research paper, it is often written last. 

3. The Introduction The introduction should be designed to attract the reader's attention and explain the focus of the research. You will introduce your overview of the topic,  your main points of information, and why this subject is important. You can introduce the current understanding and background information about the topic. Toward the end of the introduction, you add your thesis statement, and explain how you will provide information to support your research questions. This provides the purpose and focus for the rest of the paper.

4. Thesis Statement Most papers will have a thesis statement or main idea and supporting facts/ideas/arguments. State your main idea (something of interest or something to be proven or argued for or against) as your thesis statement, and then provide your supporting facts and arguments. A thesis statement is a declarative sentence that asserts the position a paper will be taking. It also points toward the paper's development. This statement should be both specific and arguable. Generally, the thesis statement will be placed at the end of the first paragraph of your paper. The remainder of your paper will support this thesis.

Students often learn to write a thesis as a first step in the writing process, but often, after research, a writer's viewpoint may change. Therefore a thesis statement may be one of the final steps in writing. 

Examples of Thesis Statements from Purdue OWL

5. The Literature Review The purpose of the literature review is to describe past important research and how it specifically relates to the research thesis. It should be a synthesis of the previous literature and the new idea being researched. The review should examine the major theories related to the topic to date and their contributors. It should include all relevant findings from credible sources, such as academic books and peer-reviewed journal articles. You will want  to:

• Explain how the literature helps the researcher understand the topic.
• Try to show connections and any disparities between the literature.
• Identify new ways to interpret prior research.
• Reveal any gaps that exist in the literature.

More about writing a literature review. . .

6. The Discussion ​The purpose of the discussion is to interpret and describe what you have learned from your research. Make the reader understand why your topic is important. The discussion should always demonstrate what you have learned from your readings (and viewings) and how that learning has made the topic evolve, especially from the short description of main points in the introduction.Explain any new understanding or insights you have had after reading your articles and/or books. Paragraphs should use transitioning sentences to develop how one paragraph idea leads to the next. The discussion will always connect to the introduction, your thesis statement, and the literature you reviewed, but it does not simply repeat or rearrange the introduction. You want to: 

• Demonstrate critical thinking, not just reporting back facts that you gathered.
• If possible, tell how the topic has evolved over the past and give it's implications for the future.
• Fully explain your main ideas with supporting information.
• Explain why your thesis is correct giving arguments to counter points.

7. The Conclusion A concluding paragraph is a brief summary of your main ideas and restates the paper's main thesis, giving the reader the sense that the stated goal of the paper has been accomplished. What have you learned by doing this research that you didn't know before? What conclusions have you drawn? You may also want to suggest further areas of study, improvement of research possibilities, etc. to demonstrate your critical thinking regarding your research.

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Home / Guides / Citation Guides / MLA Format

MLA Format: Everything You Need to Know Here

Welcome to an overview of “What is MLA Format?” in relation to paper formatting. You’ll find in-depth guidelines, examples, and visual samples to help you easily format your paper. This guide does not serve as a reference for MLA citation format.

For help determining the proper structure for citing, refer to the other guides on EasyBib.com. Here is another informative site which may help with further understanding of MLA citation format.

Guidelines for Formatting a Paper in MLA

• Use white 8 ½  x 11” paper.
• Make 1 inch margins on the top, bottom, and sides.
• The first word in every paragraph should be indented one half inch.
• Indent set-off or block quotations one half inch from the left margin.
• Use any type of font that is easy to read, such as Times New Roman. Make sure that italics look different from the regular typeface.
• Use 12-point size.
• Double space the entire research paper, even the Works Cited page.
• Leave one space after periods and other punctuation marks, unless your instructor tells you to leave two spaces.

These guidelines come from the MLA Style Center’s web page “Formatting a Research Paper.”

MLA Guide Overview

There are various sections in this guide. Each section provides an in-depth overview of the different components to keep in mind when developing an MLA paper.

This guide includes the following sections:

• Format background
• General paper formatting
• MLA heading format & title page instructions
• Running head & page numbers
• Paraphrases
• Abbreviations
• Numbers (includes the use of numbers in MLA outline format)
• Images, tables, and musical scores
• MLA works cited format
• MLA citation format (for in-depth citation rules visit this MLA citation guide or MLA in-text citation guide)
• Edits & proofreading

If you need more guidance, a website like EasyBib.com usually has guides and tools to help you out. There’s also resources on other styles, like our guide on “ APA reference page ”, otherwise known as a “References” page.

MLA Format Background

The Modern Language Association (MLA) is an organization responsible for developing MLA format. It was developed as a means for researchers, students, and scholars in the literature and language fields to uniformly format their papers and assignments. This uniform, or consistent, method to developing a paper or assignment allows for easy reading. Today, MLA is not only used in literature and language subject areas; many others have adopted it as well.

The Modern Language Association released the 9th and most current edition of their MLA Handbook in April 2021. The Handbook provides thorough instructions on citing, as well as guidelines for submitting work that adheres to the Modern Language Association’s rules and standards. Although we’re not affiliated with the MLA, our citation specialists bring you this thoughtful and informative guide on the format.

Looking for information about previous editions to the Handbook ? Want to learn more about the origin of “What is MLA format?” Click here to learn about the previous editions to the Handbook .

Actually, are you looking for help on using another style? See how to cite an APA journal , learn to create an APA book citation , and more!

Formatting the Header in MLA

To create a header for your first page, follow these steps:

• Begin one inch from the top of the first page and flush with the left margin.
• Type your name, your instructor’s name, the course name and number, and the date on separate lines, using double spaces between each.
• Double space once more and center the title. Do NOT underline, bold, or type the title in all capital letters. Only italicize words that would normally be italicized in the text. Example: Character Development in The Great Gatsby
• Do not place a period after the title or after any headings
• Double space between the title and first lines of the text

General Paper Formatting

Paper choice.

While many professors, instructors, and publications allow electronic submission, some prefer printed, hard copies of papers. This section focuses on the type of paper to use for printed submission.

If you choose to print your paper, use white paper only. Do not use ivory, off-white, or any other shades or colors.

Choose a standard, high quality paper to print your project on. Do not use cardstock. It is not necessary to use resum é paper. Use typical, high quality printer or copy paper.

When it comes to size, 8 ½-by-11-inch paper is the recommended size. If you’d like to use a different size, ask your teacher prior to submission.

Use One-Inch Margins in MLA

Use one-inch margins around the entire page. The running head should be the only item seen in the one inch margin (see below for more on running heads).

Most word processing programs automatically default to using one inch margins. Check the page settings section of the program to locate the margin size.

Indenting Paragraphs in MLA

Indent the first word in every paragraph. Sentences should begin one half inch from the left margin.

It is not necessary to manually measure half an inch. Use the “tab” button on the keyboard to create a half inch space.

Double Space Paragraphs in MLA

MLA research paper format requires that the entire research paper or MLA format essay includes double-spaced lines. Double-spaced lines should be found in between the written body of the work, in the heading, and also on the MLA reference page.

While it may seem tempting to place a few extra lines between the heading, title, and beginning of the paper, lines should all be double spaced.

Font and Font Size in MLA

In an MLA paper, it is acceptable to use any font type that is easy to read. Many source types, such as books and articles, use fonts that are easy to read, so if you’re seeking an appropriate font style, look at other sources for guidance. Two of the most commonly used fonts are Arial and Times New Roman.

It is important for the reader to be able to distinguish the difference between italicized and regular font, so if you choose a font style different than Arial or Times New Roman, make sure the difference between the two type styles is evident.

The use of a 12-point font size is recommended as this is the default size for many word processing programs. It is acceptable to use another standard size, such as 11-point or 11.5-point.

Some professors or instructors will provide guidance on how to secure hard copies of projects. If your instructor does not provide you with any expectations or guidance, a simple staple in the top left corner should suffice. If a stapler is not available, some instructors allow paper or binder clips.

Do not fold the top left corner down to secure the pages together. The page could easily unfold, causing a mess of papers. While binders and plastic holders are cute, in reality, they add bulk to a professor or instructor who may like to take the papers home for grading purposes. Keep the binding simple and clean. Staples work best, and binder and paper clips are the next best option.

As always, follow any instructions your professor or teacher may provide. The guidelines found here are simply recommendations.

MLA Heading & Title Page Instructions

The web page “Formatting a Research Paper” gives two options when it comes to creating the header for your project:

• An MLA format heading can be placed at the top of the first page
• A title page can grace the front of the assignment. If you choose to create a title page, keep in mind that there aren’t any official title page or cover page guidelines in MLA format. See more information below.

If choosing option one, creating an MLA heading, you’ll need to include four main components:

• Your full name
• Your instructor’s name
• The name and number of the course or class
• The assignment’s due date

The first item typed on the paper should be your full name.

• Position your name one inch from the top and left margins of the page.
• Add a double space beneath your name, and type the name of your instructor.
• Below the professor or instructor’s name should be a double space, followed by the name of the course, class, or section number (if available).
• Below it, include another double space and add the assignment’s due date (Day Month Year).

Here’s an example:

The assignment’s title should be placed below the due date, after a double space. Align the title so it sits in the center of the MLA format paper. The title should be written in standard lettering, without underlines, bold font, italicized font, or any quotation marks. Only include italics or quotation marks if your title includes the title of another source.

Here is an example of an MLA header for an MLA format essay, paper, or assignment:

Neal E. Bibdarsh

Professor Haujeemoto

English 201

The Trials and Tribulations of Lincoln’s Reciting of “The Gettysburg Address”

*Note: The quotation marks here are around the title of a speech included in the paper’s title.

Most research papers use a standard MLA format heading, like the one seen above. If your instructor requires you to create a standalone title page, ask him or her for specifications. MLA does not have specific instructions for developing an MLA title page. We recommend you use an MLA header for your project.

If your teacher or professor requires a standalone title page, but has not provided any guidance or specifications, here are a few suggestions from EasyBib.com and this MLA guide :

• Center and double space all of the text on your page.
• Place the name of your school at the top of the page.
• Skip down to about the center of the page and type the title of your paper. Do not bold the title, italicize the entire title, place quotation marks around it, or type the title out in capital letters.
• Use italics for the titles of any sources in the title of your paper. Example: An Analysis of Mythical Creatures in Harry Potter and the Goblet of Fire
• first letter of the title
• first letter of the last word
• first letter of any adjectives, adverbs, nouns, pronouns, and verbs
• If your paper has a subtitle, include on the next line below your title.
• Skip down to the bottom third of the page and add your name, the the name of your instructor, the name/number of the course or class, and the assignment’s due date on four separate lines.
• Keep the font size at 12 pt., or a size close to it, to make it look professional.
• Use the same font as the text of the paper. The Modern Language Association recommends any font that is easy to read and has a clear distinction between italics and standard font. Times New Roman and Arial are recommended, but many other fonts work as well.
• Include a page number in the top right corner of the paper. For more information on how to style page numbers, check out the next section, “Running Head and Page Numbers.”
• We do not recommend adding any images or cover art to the title page. 

Click  additional information about essays to see an example of a formatted header.

You can either create a title page using the EasyBib Title Page creator or omit the title page completely and use a header.

Running Head & Page Numbers in MLA

A running head is a brief heading that is placed in the top right corner of every page in a project. The Modern Language Association Style Center (online) states that the running head consists of:

• Last name of the paper’s author
• Page number

General tips to keep in mind:

• The running head is placed in the upper right-hand corner, half an inch from the top margin and one inch from the right margin of the page.
• Type your last name before the page number.
• The last name and page number should be separated by a single space.
• Do not place the word “page” or use an abbreviation, such as p. or pg., before the page number.
• Quite often, the running head begins on the second page, but your instructor may ask you to include the running head on the first page of the assignment. As always, if your instructor provides you with specific directions, follow his or her guidelines.

Before adding this information manually onto every single page, check to see if the word processor you’re using has the capability to automatically add this information for you. Try looking in the settings area where page numbers or headers can be added or modified.

Google Docs: Adding a header

• Go to the menu section “Insert.”
• Select “Page numbers” and select the option that places the page number in the upper-right corner.
• A page number will appear; your cursor will blink next to it.
• Move your cursor to the left of the page number.
• Type your last name. Add a space between your name and the page number.
• You should now have a properly formatted header on every page!

Microsoft Word Document: Adding a header

• Double-click in the space at the top of the page (where the page number is).
• OR Go to the “Insert” menu, select “Header,” and select “Edit Header.”
• Type your last name next to page number. If it isn’t already right-aligned, go to the “Home” menu and right-align your name.

Quotations in MLA

Quotes are added into assignments to help defend an argument, prove a point, add emphasis, or simply liven up a project.

Quotes should not take up the majority of your paper or assignment. Quotes should be sprinkled sparingly throughout, and quotes longer than 4 lines should be formatted as MLA block quotes . Use direct quotes from outside sources to enhance and expand on your own writing and ideas.

Words from quotes belong to the individual who spoke or wrote them, so it is essential to credit that individual’s work. Credit him or her by adding what is called an “in-text citation” into the body of the project.

There are three ways to add quotes: 1. With the author’s name in the sentence (a citation in prose).

Dan Gutman shares a glimpse into the overall plot by stating, “I didn’t know it at the time, but a baseball card—for me—could function like a time machine” (5).

In the above example, Dan Gutman is the author of the book that this quote is pulled from.

2. Without the author’s name in the sentence (a parenthetical citation).

The main character’s confusing experience is realized and explained when he states “I didn’t know it at the time, but a baseball card—for me—could function like a time machine” (Gutman 5).

In the above example, Dan Gutman’s name isn’t included in the sentence. It’s included in the parentheses at the end of the sentence. This is an example of a proper MLA style citation in the body of a project.

3. In a block quote, which is used when a large quote, of 4 lines or more, is added into a project.

Using footnotes and endnotes

The Modern Language Association generally promotes the use of references as described in the sections above, but footnotes and endnotes are also acceptable forms of references to use in your paper.

Footnotes and endnotes are helpful to use in a variety of circumstances. Here are a few scenarios when it may seem appropriate to use this type of referencing:

• When you are referring to a number of various sources, by various authors, in a section of your paper. In this situation, it is a good idea to use a footnote or endnote to share information for parenthetical references. This will encourage the reader to stay focused on the text of the research paper, instead of having to read through all of the reference information.
• When you are sharing additional information that doesn’t quite fit into the scope of the paper, but is beneficial for the reader. These types of footnotes and endnotes are helpful when explaining translations, adding background information, or sharing counterexamples to research.

To include a footnote or endnote, add a superscript number at the end of the sentence the footnote or endnote refers to. They can be included mid-sentence if necessary, but be sure to add it after any punctuation, such as commas or periods. Find a location that doesn’t distract the reader from the content and flow of the paper.

Within the text example:

Numerous well-known children’s books include characters from a wide range of races and ethnicities, thus promoting diversity and multiculturalism.¹

At the bottom of the page (footnote) or at the end of the section (endnote):

¹See Isadora, Parr, and Velazquez. While Parr’s work features characters of various colors, such as pink or blue, children easily correlate it with individuals of different races and ethnicities.

On the last page of the assignment, the writer includes the full references for the books by Isadora, Parr, and Velazquez.

For more on block quotes and a further, detailed explanation on the use of quotes, including MLA footnotes, refer to our MLA In-Text Citation and Parenthetical Citations Guide. In this guide you’ll find further information including directions for the use of quotes without an author, page numbers, and how to properly credit work from electronic sources.

For guides on citations in another style, check out APA parenthetical citation and APA in-text citation .

Paraphrases in MLA

Paraphrases are created when text or speech from another source are added into a project, but the writer chooses to summarize them and weave in his or her own writing and writing style.

Even though the writer modifies the information from another source, it is still necessary to credit the source using proper format ( Handbook 98). Paraphrased information uses the same MLA reference format as stated in the section directly above this one.

Here is an acceptable paraphrase:

Original text:

“Stay hungry. Stay foolish.” Steve Jobs

Paraphrase:

Steve Jobs encouraged students at Stanford to continue with their determination, drive, and ambitious behavior. They should never be simply satisfied with the status quo. They should continue to push themselves despite possible obstacles and failures.

To develop a well-written paraphrase, follow these simple, step-by-step instructions.

• Find a phrase, sentence, paragraph, or section of original text you’d like to turn into a paraphrase.
• Read the text carefully and make sure you fully comprehend its meaning. A writer can only develop a well-written paraphrase if the information has been fully grasped and understood. If you’re having difficulty understanding the information, take a few minutes to read up on tricky words and background information. If all else fails, ask a friend to see if they’re able to make sense of the concepts.
• After analyzing and completely understanding the original text, put it to the side. Take a moment to think about what you’ve read and connect the idea to your own assignment.
• Now that the information is completely understood, take a moment to rewrite what you’ve read, in your own words and writing style. Do not simply substitute words in the original text with synonyms. That’s plagiarism! Show off and demonstrate your ability to process the original information, connect it to the content in your paper, and write it in your own individual and unique writing style.
• Include an in-text reference next to the paraphrase. All paraphrases include references, similar to direct quotes. See the “Quotations” section of this guide to learn how to properly attribute your paraphrased information.
• Give yourself a pat on the back! Paraphrasing is an important part of the research and writing process.

Wondering if it’s better to quote or paraphrase?

An essential part of the research process involves adding direct quotes and paraphrases into projects. Direct quotes provide word-for-word evidence and allow writers to use another author’s eloquent words and language in their own projects. When it comes to paraphrases, writers are able to take a block of text and shrink the scope of it into the their papers. Paper writers can also use paraphrases to demonstrate their ability to analyze and reiterate information in a meaningful and relevant way.

If you’re wondering which one is better to consistently use, quotes or paraphrases, there’s a clear winner. Paraphrases come out on top. Sure, direct quotes are incredibly beneficial, but copying and pasting too many of these into a project can cause a reader to lose sight of the writer’s own voice. Mixing your own voice with another author’s too much can make for choppy and disjointed reading.

The ultimate goal of a research project is to have your voice and research merged together as one. Paraphrases allow just that. When you combine information from outside sources with your own writing style, it demonstrates your ability as a researcher to showcase your understanding and analyzation of a topic.

Remember, whether you’re adding direct quotes or paraphrases into a project, both types of additions need references. References are placed after the quotes and paraphrases, and also at the end of an assignment.

If you’re looking for additional help with your punctuation or grammar, check out the EasyBib plagiarism checker !

Using Abbreviations in MLA

Abbreviations are commonly used in many source types including websites, blog posts, books, and journal articles. It is acceptable to use abbreviations in all of these sources.

When it comes to school and research assignments, however, the MLA   Handbook states that abbreviations should be used rarely in the prose of your paper (293). Spelling out abbreviations into their full words and meanings is recommended. This ensures understanding and avoids any confusion from your reader.

There are times when you may feel it is perfectly acceptable to use an abbreviation rather than its typed out counterpart in a paper. If you do abbreviate, be sure you are using commonly accepted abbreviations, which you can find in the dictionary. You can also review Appendix 1 in the  MLA Handbook .

General Abbreviation Tips

• Human Immunodeficiency Virus can be abbreviated to HIV, not H.I.V.
• United States should be US, not U.S.
• Digital video disc should be DVD, not D.V.D.
• For lower case abbreviations, it is acceptable to include periods between the letters.
• The abbreviation, “For example” = e.g.
• If there is a mix of lower case and upper case letters, do not use periods if the majority of the letters are upper case. Examples include PhD and EdD

Abbreviating Months

Type out entire month names when being used in the body of a research paper or assignment.

She rented out the beach house from May through September

When it comes to references, MLA bibliography format requires months longer than four letters to be abbreviated.

• July = July
• November = Nov.

Other abbreviations that are perfectly acceptable to use in a bibliography (not the body of a project) include:

• p. or pp. for page and page numbers
• ch. for chapter
• ed. for edition
• trans. for translation or translated
• vol. for volume
• no. for number
• rev. for revised

Again, these abbreviations should only be used in the final page(s) of a project, the MLA Works Cited list. They should not be used in the body of a project.

For more information on bibliographies, see our MLA format Works Cited List page.

Abbreviating Publishers

One of the quirkiest things about this particular style is how publisher names are structured on the final page of references. Certain words are abbreviated, some words are omitted, and other words are written in full.

Words describing what type of business the publisher is are omitted from the works cited. Here’s a breakdown of the words that should be excluded:

• Co. (Company)
• Corp. (Corporation)
• Inc. (Incorporated)
• Ltd. (Limited)
• The (when at the beginning of the name)

If a publisher’s name contains the words “University” and “Press” (or the equivalent in another language), the words should be abbreviated to the letters “U” and “P” in your citation. But if only one of the words appears, it should be written out normally.

Here are a few examples:

• University of Delaware
• U College of London P

All other words related to the names of publishers should be written out in full.

Abbreviating Titles

Certain classical and biblical works are abbreviated in a bibliography, but also in any parenthetical references in the text.

The official handbook provides a lengthy list, spanning over multiple pages, of the preferred abbreviations to use for classical and biblical works ( Handbook 295-301), but here’s a quick snapshot of some of the commonly used ones:

Hebrew Bible or Old Testament = OT

• Deut. = Deuteronomy
• Gen. = Genesis
• Lev. = Leviticus
• Num. = Numbers
• Ps. = Psalms

New Testament = NT

• 1 Cor. = 1 Corinthians
• Jas. = James
• Matt. = Matthew

Shakespeare:

• Ado = Much Ado about Nothing
• 3H6 = Henry VI, Part 3
• JC = Julius Caesar
• Mac. = Macbeth
• MND = A Midsummer Night’s Dream
• Oth. = Othello
• Rom. = Romeo and Juliet

Again, the titles above are allowed to be abbreviated both in references in parentheses in the body of a project and also on the final page of references. If you’re wondering why, it’s because they’re cited often and it’s unnecessary to type out the entire title names.

Formatting Numbers in MLA

Use of numerals.

If the project calls for frequent use of numbers (such as a scientific study or statistics), use numerals that precede measurements.

• 247 milligrams

Other items to keep in mind:

In divisions, use numbers, ex: In page 5 of the study

Arabic Numbers

When including a number in a paper, spell out the number if it can be written as one word (such as six ) or two words (such as sixty-two ). For fractions, decimals, or longer numbers, type them out using digits. For larger numbers, write the number itself ( Handbook 82-84).

• twenty-seven
• one hundred

If the number comes before a unit of measurement or label, type the number using digits.

• 8 tablespoons
• 3 July 2018
• 25 King Street

More on Numbers

Starting a sentence with a number is generally frowned upon. Try modifying the sentence so that the number, or number word, is found elsewhere.

Instead of:

225 children were found in the warehouse, some malnourished and diseased.

Use this sentence:

A total of 225 children were found in the warehouse, some malnourished and diseased.

If modifying the sentence is not possible or does not work well with the flow of the assignment or paper, type out the written number:

Two hundred twenty five children were found in the warehouse, some malnourished and diseased.

Do not include any ISBN numbers in your paper.

Outline Format

The Modern Language Association does not have any requirements regarding the structure of an outline. If your teacher asks you to create an MLA outline, we recommend using roman numerals, capital and lowercase letters, and numbers.

Here is an example of a recommended outline structure:

In addition to outlines, use roman numerals for suffixes.

• King George IV

Using Images, Tables, & Musical Scores in MLA

Photographs, data sets, tables, graphs, and other images are often added into projects or papers to promote or aid understanding. They provide meaningful visuals for the reader. If the illustration or visual image does not enhance the quality of the paper, do not include it in the project.

Tables and illustrations should be placed as close as possible to the text that they most closely refer to.

For an image to be significant and easily identifiable, place it as close as possible to the text in the project where it is discussed.

It is not acceptable to simply place an image in a project without including identifiable information. All images must include information about its origin.

Here are the directions to properly attribute an image:

• Assign an Arabic number. The image closest to the beginning of the project should be labeled as Fig. 1. The next image in the project should be Fig. 2. and so on.
• Provide a caption. The caption should be a brief explanation or the title of the contents of the image. Place the caption directly next to the label.
• Immediately following the caption, it is acceptable to include attribution information. If the image is not discussed further in the rest of the paper or project, it is acceptable to include the MLA bibliography format citation below the image and omit it from the bibliography or MLA format works cited page.

In the text of the project or paper where the figure is discussed, include the label in parentheses to ensure the reader knows where to find the figure in your paper.

In the text:

Sarah’s tattoo design was filled with two of her favorite flowers: lilies and daffodils along a thinly curved vine (fig. 1).

Image formatting:

(Image Would Be Here) Fig. 1. Sarah’s Tattoo. barneyWILLIAMSable, Deviant Art , 2011, barneywilliamsable.deviantart.com/art/Sarah-s-Tattoo-design-193048938.

Fig. 1. White Studio. “Houdini and Jennie, the Elephant, Performing at the Hippodrome, New York.” Library of Congress , www.loc.gov/item/96518833/.

When adding a table or data set into a project, it is formatted a little differently. Above the data set, include the label “Table” with an Arabic numeral, and title it. The table number and title should be located flush left and on separate lines. The first table seen in the project is labeled as Table 1. The second table in the project is Table 2, and so on. The table’s title should be written in title case form (the first letter of each word is capitalized, except for small, insignificant words).

Underneath the table, provide the source and any notes. Notes should be labeled with a letter, rather than a numeral, so the reader is able to differentiate between the notes of the text and the notes of the table.

International Scholars from India Enrolled at Yale University a

Source: “International Scholars Academic Year 2015-2016.” Yale University , Office of International Students and Scholars, yale.app.box.com/v/scholar-2015-2016. a. The numbers reflect students who are enrolled full-time.

The information included above and below any images or table should be double spaced, similar to the rest of the project or paper.

Musical Scores

Musical scores need to be labeled as well. When including a musical score in a project, label musical scores with “Ex.” which is short for example. This label should be placed below the musical score. Next to the abbreviation “Ex.”, assign the score an Arabic numeral. The first musical score in the project should be labeled as Ex. 1. The second musical score found in an assignment should be labeled as Ex. 2., and so on.

If possible, provide a caption after to the label. If the caption below the sheet music includes enough information about the source, it is not necessary to include the full reference at the end of the assignment.

Here is an example of a possible label and caption:

Ex. 4. Scott Joplin, The Entertainer, piano, C major.

Another example:

Here’s more on tables and illustrations.

Using Lists in MLA

It’s appropriate to add lists into an MLA format essay as long as the proper rules are followed.

Lists created using MLA essay format look different than a grocery list or any other type of vertical listing of items. Items in a list are included in your prose, rather than the traditional vertical style.

Often, you will use a colon between the introductory sentence and the list. But you should not include a colon if the first item in the list is part of the sentence.

List Example #1

Here is an example of how a list may look incorporated into the prose of a research project or assignment:

William Shakespeare wrote numerous plays, many of which were considered tragedies: Romeo and Juliet , Hamlet , Macbeth , Othello , Julius Caesar , and King Lear .

List Example #2 Here is an example of how a list may look in a research project or assignment when the list is part of the introductory sentence:

Many of William Shakespeare’s were tragedies. Some of his most popular tragedies include Romeo and Juliet , Hamlet , Macbeth , Othello , Julius Caesar , and King Lear.

MLA Works Cited Format

EasyBib.com has a full, comprehensive guide to creating a proper works cited MLA format , but here are a few items to keep in mind when developing this portion of a project:

• The list of citations should be the very last page of a research project or essay.
• The top of the page should include the running head and the page number.
• All entries should be placed in alphabetical order by the first item in the MLA format citation.
• The entire page should be double spaced.

For more detailed information, make sure to check out the EasyBib guide to MLA format Works Cited pages.

MLA Citation Format

The majority of this guide focuses on MLA formatting in regards to MLA paper format rules and guidelines. If you’re seeking information related to the proper formatting of an MLA citation, refer to our individual pages and posts on various types of citations.

If you’re simply looking for the general structure for full references, which are found on the final pages of projects, here’s the proper order:

Author’s Last name, Author’s First name. “Title of Source.”* Title of Container , Names of other contributors along with their specific roles, version of the source (if it differs from the original or is unique), any key numbers associated with the source that aren’t dates (such as journal issue numbers or volume numbers), Name of the Publisher, publication date, location (such as the URL or page numbers).

*Note: A title may be in italics instead of quotation marks, depending of the type of source. The general rule is that works that are self-contained (like books, journals, or television shows) are formatted in italics. Works that are part of a larger work (like articles, chapters, or specific episodes) are formatting in quotation marks. 

MLA Format Citing FAQs:

“What in the world are containers?”

Containers are what hold the source. If you’re creating a reference for a chapter in a book, the title of the chapter is the title of the source , and the container is the title of the book . The book holds the chapter, so it’s the container. If you’re searching for how to cite a website, here’s a tip: the title of the source is the name of the individual page and the title of the container is the name of the full website.

“This seems like a lot of information for a reference. Is it all necessary?”

The short answer is “No!” When citing, only include the components that help the reader locate the exact same source themselves.

It isn’t necessary to go digging for items such as numbers, version types, or names of other individuals or contributors associated with the source if they aren’t applicable. If you think it’s beneficial for the reader, then include it.

Related to citations, here are helpful pages on:

• MLA citation website format
• Citing a book
• Citing a journal
• What is a DOI ?
• More on PDFs

If you’re looking for an MLA citation generator, head to the EasyBib homepage. Our formatter will help you create citations quickly and easily!

Need APA, too? There are also EasyBib tools and an APA citation website reference guide to help you learn the basics.

Edits and Proofreading

Editing and proofreading your assignment prior to submission is an incredibly important step in the research process. Editing involves checking the paper for the following items:

• Spelling : Are all words spelled correctly? Review all proper names, places, and other unique words to ensure correct spelling. When finished, run the project through a spell checker. Many word processing programs, such as Microsoft Word and Google Drive, provide a free spell checking feature. While spell checks are beneficial, they do not always spot every mistake, so make sure you take the time to read through the assignment carefully. If you’re still not sure if your project contains proper spelling, ask a friend to read through it. They may find a mistake you missed!
• Grammar : Check your assignment to make sure you’ve included proper word usage. There are numerous grammar checkers available to review your project prior to submission. Again, take the time to review any recommendations from these programs prior to accepting the suggestions and revisions.
• Punctuation : Check to make sure the end of every sentence has an ending punctuation mark. Also make sure commas, hyphens, colons, and other punctuation marks are placed in the appropriate places.
• Attribution : Do all quotes and paraphrases include a citation? Did you create an in-text citation for each individual piece of information?

Smart idea: running your paper through a paper checker before you turn it in. EasyBib Plus offers a checker that scans for grammar errors and unintentional plagiarism. 

Check out our MLA sample papers . Also, check out the EasyBib MLA Annotated Bibliography Guide.

Don’t forget to use the EasyBib citation generator to develop your Modern Language Association style references.EasyBib.com also has helpful guides on APA format and more styles . Lastly, stay up-to-date on what’s coming by following our EasyBib Twitter account.

Works Cited

“Formatting a Research Paper.” The MLA Style Center , Modern Language Association of America, style.mla.org/formatting-papers/.

MLA Handbook. 9th ed., Modern Language Association of America, 2021.

Published October 31, 2011. Updated July 25, 2021.

Written and edited by Michele Kirschenbaum and Elise Barbeau . Michele Kirschenbaum is a school library media specialist and the in-house librarian at EasyBib.com. You can find her here on Twitter. Elise Barbeau is the Citation Specialist at Chegg. She has worked in digital marketing, libraries, and publishing.

MLA Formatting Guide

MLA Formatting

• Annotated Bibliography
• Bibliography
• Block Quotes
• et al Usage
• In-text Citations
• Paraphrasing
• Page Numbers
• Sample Paper
• MLA 8 Updates
• MLA 9 Updates
• View MLA Guide

Citation Examples

• Book Chapter
• Journal Article
• Magazine Article
• Newspaper Article
• Website (no author)
• View all MLA Examples

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The works-cited list provides the reader full information so that a reader can locate the source for further use.

Basic formatting

The works-cited list appears at the end of the paper, after any endnotes if they are present.

Page margins

All margins (top, bottom, left, and right) should be set at 1 inch.

Running head

Write the running head in the top right of the page at 0.5 inch from the top. Use the running head “Surname Page #.”

The font should be clear enough to read. For example, Times New Roman font set to 12 points.

Formatting entries

Entries should be double-spaced, including a double-space between the heading and the first entry. If any entry runs over more than a line, indent the subsequent line(s) 0.5 inch from the left margin.

Formatting the title

The title should be “Works Cited.” Center the title. Do not bold, italicize, or underline the title. If you cite only one source in the list, the title should be “Work Cited.” If you include sources that you only consulted and didn’t cite directly, the title should be changed accordingly to “Works Cited and Consulted.”

Arranging works cited

Works-cited-list entries are arranged alphabetically by the author’s last name (or the editor’s last name for entire edited collections). Double-space all entries. Begin each entry flush with the left margin. If any entry runs over more than one line, indent the subsequent line(s) 0.5 inch from the left margin (sometimes called a hanging indent).

Example works cited

Damasio, Antonio. The Feeling of What Happens: Body, Emotion and the Making of Consciousness . Vintage, 2000.

Hill, R. T. “Legitimizing Colonial Privilege: Native Americans at a Quincentenary of Discourse.” Text and Performance Quarterly , vol. 16, no. 1, 1996, pp. 92–100.

MacDonald, Shauna M. “Performance as Critical Posthuman Pedagogy.” Text and Performance Quarterly , vol. 34, no. 2, 2014, pp. 164–81.

Zilio, M. “Canada Will Not Move Embassy to Jerusalem, Federal Government Says.” The Globe and Mail . 7 Sept. 2017, www.theglobeandmail.com/news/politics/canada-will-not-move-embassy-to-jerusalem-federal-government-says/article37219576/ .

An in-text citation is a short citation that is placed in the text. It is styled in two ways: a citation in prose or a parenthetical citation.

The basic element needed for an in-text citation is the author’s name . The publication year is not required in in-text citations. Sometimes, page numbers or line numbers are also included, especially when directly quoting text from the source being cited. When including a page number, do not include a comma or any other punctuation mark between the author’s surname and the page number.

Parenthetical citations usually add only the author’s surname at the end of the sentence in parentheses. Sometimes they include a page number or other locator. An example of a parenthetical citation is given below:

The spiritual geography of the landscape is explained (Cooper).

If you want to cite a chapter number, a scene, or a line number, follow the abbreviation guidelines below:

When including a more specific locator number rather than a page number, place a comma between the author’s surname and the label.

(Cooper, ch. 2).

Here are a few examples of in-text citations for sources with different numbers or types of authors:

Use only the surname of the author in parenthetical citations. If you want to add a page number (or another indicator of the place in a work), add it after the author’s surname without any punctuation between the surname and the page number.

(Abraham 7).

Two authors

Add only the surnames of the authors. Use “and” to separate the two authors.

(Langmuir and Einstein).

Three or more authors

Add only the surname of the first author followed by “et al.”

(Low et al.).

Corporate author

Shorten the organization name wherever possible, excluding any initial articles and using the shortest noun phrase (e.g., shorten Literary Society of Tamil Culture to Literary Society).

(Literary Society).

If there is no author for the source, use the source title in place of the author’s surname.

When you add such in-text citations, italicize the text of the title. If the source title is longer than a noun phrase, use a shortened version of the title. For example, the title Fantastic Beasts and Where to Find Them is shortened to Fantastic Beasts .

( Fantastic Beasts 160).

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Methodology

• How to Write a Literature Review | Guide, Examples, & Templates

How to Write a Literature Review | Guide, Examples, & Templates

Published on January 2, 2023 by Shona McCombes . Revised on September 11, 2023.

What is a literature review? A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods, and gaps in the existing research that you can later apply to your paper, thesis, or dissertation topic .

There are five key steps to writing a literature review:

• Search for relevant literature
• Evaluate sources
• Identify themes, debates, and gaps
• Outline the structure
• Write your literature review

A good literature review doesn’t just summarize sources—it analyzes, synthesizes , and critically evaluates to give a clear picture of the state of knowledge on the subject.

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Table of contents

What is the purpose of a literature review, examples of literature reviews, step 1 – search for relevant literature, step 2 – evaluate and select sources, step 3 – identify themes, debates, and gaps, step 4 – outline your literature review’s structure, step 5 – write your literature review, free lecture slides, other interesting articles, frequently asked questions, introduction.

• Quick Run-through
• Step 1 & 2

When you write a thesis , dissertation , or research paper , you will likely have to conduct a literature review to situate your research within existing knowledge. The literature review gives you a chance to:

• Demonstrate your familiarity with the topic and its scholarly context
• Develop a theoretical framework and methodology for your research
• Position your work in relation to other researchers and theorists
• Show how your research addresses a gap or contributes to a debate
• Evaluate the current state of research and demonstrate your knowledge of the scholarly debates around your topic.

Writing literature reviews is a particularly important skill if you want to apply for graduate school or pursue a career in research. We’ve written a step-by-step guide that you can follow below.

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Writing literature reviews can be quite challenging! A good starting point could be to look at some examples, depending on what kind of literature review you’d like to write.

• Example literature review #1: “Why Do People Migrate? A Review of the Theoretical Literature” ( Theoretical literature review about the development of economic migration theory from the 1950s to today.)
• Example literature review #2: “Literature review as a research methodology: An overview and guidelines” ( Methodological literature review about interdisciplinary knowledge acquisition and production.)
• Example literature review #3: “The Use of Technology in English Language Learning: A Literature Review” ( Thematic literature review about the effects of technology on language acquisition.)
• Example literature review #4: “Learners’ Listening Comprehension Difficulties in English Language Learning: A Literature Review” ( Chronological literature review about how the concept of listening skills has changed over time.)

You can also check out our templates with literature review examples and sample outlines at the links below.

Download Word doc Download Google doc

Before you begin searching for literature, you need a clearly defined topic .

If you are writing the literature review section of a dissertation or research paper, you will search for literature related to your research problem and questions .

Make a list of keywords

Start by creating a list of keywords related to your research question. Include each of the key concepts or variables you’re interested in, and list any synonyms and related terms. You can add to this list as you discover new keywords in the process of your literature search.

• Social media, Facebook, Instagram, Twitter, Snapchat, TikTok
• Body image, self-perception, self-esteem, mental health
• Generation Z, teenagers, adolescents, youth

Search for relevant sources

Use your keywords to begin searching for sources. Some useful databases to search for journals and articles include:

• Your university’s library catalogue
• Google Scholar
• Project Muse (humanities and social sciences)
• Medline (life sciences and biomedicine)
• EconLit (economics)
• Inspec (physics, engineering and computer science)

You can also use boolean operators to help narrow down your search.

Make sure to read the abstract to find out whether an article is relevant to your question. When you find a useful book or article, you can check the bibliography to find other relevant sources.

You likely won’t be able to read absolutely everything that has been written on your topic, so it will be necessary to evaluate which sources are most relevant to your research question.

For each publication, ask yourself:

• What question or problem is the author addressing?
• What are the key concepts and how are they defined?
• What are the key theories, models, and methods?
• Does the research use established frameworks or take an innovative approach?
• What are the results and conclusions of the study?
• How does the publication relate to other literature in the field? Does it confirm, add to, or challenge established knowledge?
• What are the strengths and weaknesses of the research?

Make sure the sources you use are credible , and make sure you read any landmark studies and major theories in your field of research.

You can use our template to summarize and evaluate sources you’re thinking about using. Click on either button below to download.

Take notes and cite your sources

As you read, you should also begin the writing process. Take notes that you can later incorporate into the text of your literature review.

It is important to keep track of your sources with citations to avoid plagiarism . It can be helpful to make an annotated bibliography , where you compile full citation information and write a paragraph of summary and analysis for each source. This helps you remember what you read and saves time later in the process.

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To begin organizing your literature review’s argument and structure, be sure you understand the connections and relationships between the sources you’ve read. Based on your reading and notes, you can look for:

• Trends and patterns (in theory, method or results): do certain approaches become more or less popular over time?
• Themes: what questions or concepts recur across the literature?
• Debates, conflicts and contradictions: where do sources disagree?
• Pivotal publications: are there any influential theories or studies that changed the direction of the field?
• Gaps: what is missing from the literature? Are there weaknesses that need to be addressed?

This step will help you work out the structure of your literature review and (if applicable) show how your own research will contribute to existing knowledge.

• Most research has focused on young women.
• There is an increasing interest in the visual aspects of social media.
• But there is still a lack of robust research on highly visual platforms like Instagram and Snapchat—this is a gap that you could address in your own research.

There are various approaches to organizing the body of a literature review. Depending on the length of your literature review, you can combine several of these strategies (for example, your overall structure might be thematic, but each theme is discussed chronologically).

Chronological

The simplest approach is to trace the development of the topic over time. However, if you choose this strategy, be careful to avoid simply listing and summarizing sources in order.

Try to analyze patterns, turning points and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred.

If you have found some recurring central themes, you can organize your literature review into subsections that address different aspects of the topic.

For example, if you are reviewing literature about inequalities in migrant health outcomes, key themes might include healthcare policy, language barriers, cultural attitudes, legal status, and economic access.

Methodological

If you draw your sources from different disciplines or fields that use a variety of research methods , you might want to compare the results and conclusions that emerge from different approaches. For example:

• Look at what results have emerged in qualitative versus quantitative research
• Discuss how the topic has been approached by empirical versus theoretical scholarship
• Divide the literature into sociological, historical, and cultural sources

Theoretical

A literature review is often the foundation for a theoretical framework . You can use it to discuss various theories, models, and definitions of key concepts.

You might argue for the relevance of a specific theoretical approach, or combine various theoretical concepts to create a framework for your research.

Like any other academic text , your literature review should have an introduction , a main body, and a conclusion . What you include in each depends on the objective of your literature review.

The introduction should clearly establish the focus and purpose of the literature review.

Depending on the length of your literature review, you might want to divide the body into subsections. You can use a subheading for each theme, time period, or methodological approach.

As you write, you can follow these tips:

• Summarize and synthesize: give an overview of the main points of each source and combine them into a coherent whole
• Analyze and interpret: don’t just paraphrase other researchers — add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
• Critically evaluate: mention the strengths and weaknesses of your sources
• Write in well-structured paragraphs: use transition words and topic sentences to draw connections, comparisons and contrasts

In the conclusion, you should summarize the key findings you have taken from the literature and emphasize their significance.

When you’ve finished writing and revising your literature review, don’t forget to proofread thoroughly before submitting. Not a language expert? Check out Scribbr’s professional proofreading services !

This article has been adapted into lecture slides that you can use to teach your students about writing a literature review.

Scribbr slides are free to use, customize, and distribute for educational purposes.

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If you want to know more about the research process , methodology , research bias , or statistics , make sure to check out some of our other articles with explanations and examples.

• Sampling methods
• Simple random sampling
• Stratified sampling
• Cluster sampling
• Likert scales
• Reproducibility

 Statistics

• Null hypothesis
• Statistical power
• Probability distribution
• Effect size
• Poisson distribution

Research bias

• Optimism bias
• Cognitive bias
• Implicit bias
• Hawthorne effect
• Anchoring bias
• Explicit bias

A literature review is a survey of scholarly sources (such as books, journal articles, and theses) related to a specific topic or research question .

It is often written as part of a thesis, dissertation , or research paper , in order to situate your work in relation to existing knowledge.

There are several reasons to conduct a literature review at the beginning of a research project:

• To familiarize yourself with the current state of knowledge on your topic
• To ensure that you’re not just repeating what others have already done
• To identify gaps in knowledge and unresolved problems that your research can address
• To develop your theoretical framework and methodology
• To provide an overview of the key findings and debates on the topic

Writing the literature review shows your reader how your work relates to existing research and what new insights it will contribute.

The literature review usually comes near the beginning of your thesis or dissertation . After the introduction , it grounds your research in a scholarly field and leads directly to your theoretical framework or methodology .

A literature review is a survey of credible sources on a topic, often used in dissertations , theses, and research papers . Literature reviews give an overview of knowledge on a subject, helping you identify relevant theories and methods, as well as gaps in existing research. Literature reviews are set up similarly to other  academic texts , with an introduction , a main body, and a conclusion .

An  annotated bibliography is a list of  source references that has a short description (called an annotation ) for each of the sources. It is often assigned as part of the research process for a  paper .  

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MLA In-Text Citations: The Basics

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MLA (Modern Language Association) style is most commonly used to write papers and cite sources within the liberal arts and humanities. This resource, updated to reflect the MLA Handbook (9 th ed.), offers examples for the general format of MLA research papers, in-text citations, endnotes/footnotes, and the Works Cited page.

Guidelines for referring to the works of others in your text using MLA style are covered throughout the  MLA Handbook  and in chapter 7 of the  MLA Style Manual . Both books provide extensive examples, so it's a good idea to consult them if you want to become even more familiar with MLA guidelines or if you have a particular reference question.

Basic in-text citation rules

In MLA Style, referring to the works of others in your text is done using parenthetical citations . This method involves providing relevant source information in parentheses whenever a sentence uses a quotation or paraphrase. Usually, the simplest way to do this is to put all of the source information in parentheses at the end of the sentence (i.e., just before the period). However, as the examples below will illustrate, there are situations where it makes sense to put the parenthetical elsewhere in the sentence, or even to leave information out.

General Guidelines

• The source information required in a parenthetical citation depends (1) upon the source medium (e.g. print, web, DVD) and (2) upon the source’s entry on the Works Cited page.
• Any source information that you provide in-text must correspond to the source information on the Works Cited page. More specifically, whatever signal word or phrase you provide to your readers in the text must be the first thing that appears on the left-hand margin of the corresponding entry on the Works Cited page.

In-text citations: Author-page style

MLA format follows the author-page method of in-text citation. This means that the author's last name and the page number(s) from which the quotation or paraphrase is taken must appear in the text, and a complete reference should appear on your Works Cited page. The author's name may appear either in the sentence itself or in parentheses following the quotation or paraphrase, but the page number(s) should always appear in the parentheses, not in the text of your sentence. For example:

Both citations in the examples above, (263) and (Wordsworth 263), tell readers that the information in the sentence can be located on page 263 of a work by an author named Wordsworth. If readers want more information about this source, they can turn to the Works Cited page, where, under the name of Wordsworth, they would find the following information:

Wordsworth, William. Lyrical Ballads . Oxford UP, 1967.

In-text citations for print sources with known author

For print sources like books, magazines, scholarly journal articles, and newspapers, provide a signal word or phrase (usually the author’s last name) and a page number. If you provide the signal word/phrase in the sentence, you do not need to include it in the parenthetical citation.

These examples must correspond to an entry that begins with Burke, which will be the first thing that appears on the left-hand margin of an entry on the Works Cited page:

Burke, Kenneth. Language as Symbolic Action: Essays on Life, Literature, and Method . University of California Press, 1966.

In-text citations for print sources by a corporate author

When a source has a corporate author, it is acceptable to use the name of the corporation followed by the page number for the in-text citation. You should also use abbreviations (e.g., nat'l for national) where appropriate, so as to avoid interrupting the flow of reading with overly long parenthetical citations.

In-text citations for sources with non-standard labeling systems

If a source uses a labeling or numbering system other than page numbers, such as a script or poetry, precede the citation with said label. When citing a poem, for instance, the parenthetical would begin with the word “line”, and then the line number or range. For example, the examination of William Blake’s poem “The Tyger” would be cited as such:

The speaker makes an ardent call for the exploration of the connection between the violence of nature and the divinity of creation. “In what distant deeps or skies. / Burnt the fire of thine eyes," they ask in reference to the tiger as they attempt to reconcile their intimidation with their relationship to creationism (lines 5-6).

Longer labels, such as chapters (ch.) and scenes (sc.), should be abbreviated.

In-text citations for print sources with no known author

When a source has no known author, use a shortened title of the work instead of an author name, following these guidelines.

Place the title in quotation marks if it's a short work (such as an article) or italicize it if it's a longer work (e.g. plays, books, television shows, entire Web sites) and provide a page number if it is available.

Titles longer than a standard noun phrase should be shortened into a noun phrase by excluding articles. For example, To the Lighthouse would be shortened to Lighthouse .

If the title cannot be easily shortened into a noun phrase, the title should be cut after the first clause, phrase, or punctuation:

In this example, since the reader does not know the author of the article, an abbreviated title appears in the parenthetical citation, and the full title of the article appears first at the left-hand margin of its respective entry on the Works Cited page. Thus, the writer includes the title in quotation marks as the signal phrase in the parenthetical citation in order to lead the reader directly to the source on the Works Cited page. The Works Cited entry appears as follows:

"The Impact of Global Warming in North America." Global Warming: Early Signs . 1999. www.climatehotmap.org/. Accessed 23 Mar. 2009.

If the title of the work begins with a quotation mark, such as a title that refers to another work, that quote or quoted title can be used as the shortened title. The single quotation marks must be included in the parenthetical, rather than the double quotation.

Parenthetical citations and Works Cited pages, used in conjunction, allow readers to know which sources you consulted in writing your essay, so that they can either verify your interpretation of the sources or use them in their own scholarly work.

Author-page citation for classic and literary works with multiple editions

Page numbers are always required, but additional citation information can help literary scholars, who may have a different edition of a classic work, like Marx and Engels's  The Communist Manifesto . In such cases, give the page number of your edition (making sure the edition is listed in your Works Cited page, of course) followed by a semicolon, and then the appropriate abbreviations for volume (vol.), book (bk.), part (pt.), chapter (ch.), section (sec.), or paragraph (par.). For example:

Author-page citation for works in an anthology, periodical, or collection

When you cite a work that appears inside a larger source (for instance, an article in a periodical or an essay in a collection), cite the author of the  internal source (i.e., the article or essay). For example, to cite Albert Einstein's article "A Brief Outline of the Theory of Relativity," which was published in  Nature  in 1921, you might write something like this:

See also our page on documenting periodicals in the Works Cited .

Citing authors with same last names

Sometimes more information is necessary to identify the source from which a quotation is taken. For instance, if two or more authors have the same last name, provide both authors' first initials (or even the authors' full name if different authors share initials) in your citation. For example:

Citing a work by multiple authors

For a source with two authors, list the authors’ last names in the text or in the parenthetical citation:

Corresponding Works Cited entry:

Best, David, and Sharon Marcus. “Surface Reading: An Introduction.” Representations , vol. 108, no. 1, Fall 2009, pp. 1-21. JSTOR, doi:10.1525/rep.2009.108.1.1

For a source with three or more authors, list only the first author’s last name, and replace the additional names with et al.

Franck, Caroline, et al. “Agricultural Subsidies and the American Obesity Epidemic.” American Journal of Preventative Medicine , vol. 45, no. 3, Sept. 2013, pp. 327-333.

Citing multiple works by the same author

If you cite more than one work by an author, include a shortened title for the particular work from which you are quoting to distinguish it from the others. Put short titles of books in italics and short titles of articles in quotation marks.

Citing two articles by the same author :

Citing two books by the same author :

Additionally, if the author's name is not mentioned in the sentence, format your citation with the author's name followed by a comma, followed by a shortened title of the work, and, when appropriate, the page number(s):

Citing multivolume works

If you cite from different volumes of a multivolume work, always include the volume number followed by a colon. Put a space after the colon, then provide the page number(s). (If you only cite from one volume, provide only the page number in parentheses.)

Citing the Bible

In your first parenthetical citation, you want to make clear which Bible you're using (and underline or italicize the title), as each version varies in its translation, followed by book (do not italicize or underline), chapter, and verse. For example:

If future references employ the same edition of the Bible you’re using, list only the book, chapter, and verse in the parenthetical citation:

John of Patmos echoes this passage when describing his vision (Rev. 4.6-8).

Citing indirect sources

Sometimes you may have to use an indirect source. An indirect source is a source cited within another source. For such indirect quotations, use "qtd. in" to indicate the source you actually consulted. For example:

Note that, in most cases, a responsible researcher will attempt to find the original source, rather than citing an indirect source.

Citing transcripts, plays, or screenplays

Sources that take the form of a dialogue involving two or more participants have special guidelines for their quotation and citation. Each line of dialogue should begin with the speaker's name written in all capitals and indented half an inch. A period follows the name (e.g., JAMES.) . After the period, write the dialogue. Each successive line after the first should receive an additional indentation. When another person begins speaking, start a new line with that person's name indented only half an inch. Repeat this pattern each time the speaker changes. You can include stage directions in the quote if they appear in the original source.

Conclude with a parenthetical that explains where to find the excerpt in the source. Usually, the author and title of the source can be given in a signal phrase before quoting the excerpt, so the concluding parenthetical will often just contain location information like page numbers or act/scene indicators.

Here is an example from O'Neill's  The Iceman Cometh.

WILLIE. (Pleadingly) Give me a drink, Rocky. Harry said it was all right. God, I need a drink.

ROCKY. Den grab it. It's right under your nose.

WILLIE. (Avidly) Thanks. (He takes the bottle with both twitching hands and tilts it to his lips and gulps down the whiskey in big swallows.) (1.1)

Citing non-print or sources from the Internet

With more and more scholarly work published on the Internet, you may have to cite sources you found in digital environments. While many sources on the Internet should not be used for scholarly work (reference the OWL's  Evaluating Sources of Information  resource), some Web sources are perfectly acceptable for research. When creating in-text citations for electronic, film, or Internet sources, remember that your citation must reference the source on your Works Cited page.

Sometimes writers are confused with how to craft parenthetical citations for electronic sources because of the absence of page numbers. However, these sorts of entries often do not require a page number in the parenthetical citation. For electronic and Internet sources, follow the following guidelines:

• Include in the text the first item that appears in the Work Cited entry that corresponds to the citation (e.g. author name, article name, website name, film name).
• Do not provide paragraph numbers or page numbers based on your Web browser’s print preview function.
• Unless you must list the Web site name in the signal phrase in order to get the reader to the appropriate entry, do not include URLs in-text. Only provide partial URLs such as when the name of the site includes, for example, a domain name, like  CNN.com  or  Forbes.com,  as opposed to writing out http://www.cnn.com or http://www.forbes.com.

Miscellaneous non-print sources

Two types of non-print sources you may encounter are films and lectures/presentations:

In the two examples above “Herzog” (a film’s director) and “Yates” (a presentor) lead the reader to the first item in each citation’s respective entry on the Works Cited page:

Herzog, Werner, dir. Fitzcarraldo . Perf. Klaus Kinski. Filmverlag der Autoren, 1982.

Yates, Jane. "Invention in Rhetoric and Composition." Gaps Addressed: Future Work in Rhetoric and Composition, CCCC, Palmer House Hilton, 2002. Address.

Electronic sources

Electronic sources may include web pages and online news or magazine articles:

In the first example (an online magazine article), the writer has chosen not to include the author name in-text; however, two entries from the same author appear in the Works Cited. Thus, the writer includes both the author’s last name and the article title in the parenthetical citation in order to lead the reader to the appropriate entry on the Works Cited page (see below).

In the second example (a web page), a parenthetical citation is not necessary because the page does not list an author, and the title of the article, “MLA Formatting and Style Guide,” is used as a signal phrase within the sentence. If the title of the article was not named in the sentence, an abbreviated version would appear in a parenthetical citation at the end of the sentence. Both corresponding Works Cited entries are as follows:

Taylor, Rumsey. "Fitzcarraldo." Slant , 13 Jun. 2003, www.slantmagazine.com/film/review/fitzcarraldo/. Accessed 29 Sep. 2009. 

"MLA Formatting and Style Guide." The Purdue OWL , 2 Aug. 2016, owl.english.purdue.edu/owl/resource/747/01/. Accessed 2 April 2018.

Multiple citations

To cite multiple sources in the same parenthetical reference, separate the citations by a semi-colon:

Time-based media sources

When creating in-text citations for media that has a runtime, such as a movie or podcast, include the range of hours, minutes and seconds you plan to reference. For example: (00:02:15-00:02:35).

When a citation is not needed

Common sense and ethics should determine your need for documenting sources. You do not need to give sources for familiar proverbs, well-known quotations, or common knowledge (For example, it is expected that U.S. citizens know that George Washington was the first President.). Remember that citing sources is a rhetorical task, and, as such, can vary based on your audience. If you’re writing for an expert audience of a scholarly journal, for example, you may need to deal with expectations of what constitutes “common knowledge” that differ from common norms.

Other Sources

The MLA Handbook describes how to cite many different kinds of authors and content creators. However, you may occasionally encounter a source or author category that the handbook does not describe, making the best way to proceed can be unclear.

In these cases, it's typically acceptable to apply the general principles of MLA citation to the new kind of source in a way that's consistent and sensible. A good way to do this is to simply use the standard MLA directions for a type of source that resembles the source you want to cite.

You may also want to investigate whether a third-party organization has provided directions for how to cite this kind of source. For example, Norquest College provides guidelines for citing Indigenous Elders and Knowledge Keepers⁠ —an author category that does not appear in the MLA Handbook . In cases like this, however, it's a good idea to ask your instructor or supervisor whether using third-party citation guidelines might present problems.