How to cite in MLA and APA format

Citing sources is a critical skill for academic writing, ensuring credibility, avoiding plagiarism, and giving credit to original authors. Two of the most widely used citation styles are MLA (Modern Language Association) and APA (American Psychological Association). This comprehensive guide explores the nuances of both formats, offering detailed instructions, examples, and practical tips to help you master citations for various source types, including books, journal articles, websites, and more. Whether you’re a student, researcher, or professional, understanding MLA and APA citation rules will enhance the quality and integrity of your work.

Understanding MLA and APA: An Overview

Before diving into the specifics, it’s important to understand the purpose and scope of each style. MLA is commonly used in the humanities, particularly in literature, philosophy, and the arts. It emphasizes authorship and page numbers to help readers locate exact passages in texts. APA, on the other hand, is prevalent in the social sciences, such as psychology, sociology, and education, focusing on the currency of research by highlighting publication dates.

Both styles have distinct formatting rules for in-text citations and reference lists (or Works Cited in MLA). This guide will cover the core components of each, including in-text citations, reference entries, and formatting guidelines, with examples for common source types.

MLA Citation Format

General Principles of MLA

MLA style, outlined in the MLA Handbook (9th edition, 2021), prioritizes a streamlined approach to citations. The Works Cited page lists all sources referenced in your paper, and in-text citations direct readers to those entries. MLA uses a “container” system, where sources are described using core elements like author, title, publisher, and publication date, arranged in a specific order.

In-Text Citations in MLA

In MLA, in-text citations typically include the author’s last name and the page number where the information appears, without a comma between them. They are usually placed at the end of a sentence in parentheses.

Example:

• According to Smith, storytelling is a universal human trait (45).
• Storytelling is a universal human trait (Smith 45).

If the author’s name is mentioned in the sentence, only the page number is needed in parentheses:

Example:

• Smith argues that storytelling is a universal human trait (45).

For sources with no author, use a shortened version of the title in place of the author’s name:

Example:

• The article highlights new trends in education (“Innovative Teaching” 12).

For sources with two authors, include both last names:

Example:

• (Johnson and Lee 23)

For three or more authors, use the first author’s last name followed by “et al.”:

Example:

• (Brown et al. 56)

Works Cited Entries in MLA

The Works Cited page appears at the end of your paper, listing full bibliographic details for each source. Entries follow a standard format with these core elements (when available):

1. Author.
2. Title of Source.
3. Title of Container, (e.g., journal, book, website)
4. Contributor, (e.g., editor, translator)
5. Version, (e.g., edition)
6. Number, (e.g., volume, issue)
7. Publisher,
8. Publication Date,
9. Location. (e.g., page numbers, URL, DOI)

Elements are separated by periods, and the entry is formatted with a hanging indent.

Book Citation

Format:Author’s Last Name, First Name. Title of Book. Publisher, Publication Year.

Example:Smith, John. The Art of Storytelling. Penguin Books, 2020.

Journal Article Citation

Format:Author’s Last Name, First Name. “Title of Article.” Title of Journal, vol. #, no. #, Year, pp. #-#.

Example:Johnson, Emily, and Robert Lee. “Cultural Influences on Learning.” Journal of Education, vol. 45, no. 3, 2019, pp. 123-135.

Website Citation

Format:Author’s Last Name, First Name (if available). “Title of Webpage.” Title of Website, Publisher (if different from website title), Publication Date, URL.

Example:Doe, Jane. “The Future of Online Learning.” Education Today, 15 Mar. 2021, www.educationtoday.org/future-learning.

If no author is provided, start with the title of the webpage.

Multiple Authors

• Two authors: List both names (Last Name, First Name, and First Name Last Name). Example: Johnson, Emily, and Robert Lee.
• Three or more authors: Use the first author’s name followed by “et al.” Example: Brown, Sarah, et al.

Formatting the Works Cited Page

• Title: Center “Works Cited” at the top of the page (no bold or italics).
• Alphabetization: Arrange entries alphabetically by the author’s last name or, if no author, by the title.
• Hanging Indent: Indent the second and subsequent lines of each entry by 0.5 inches.
• Double Spacing: Use double spacing throughout, with no extra spaces between entries.

APA Citation Format

General Principles of APA

APA style, detailed in the Publication Manual of the American Psychological Association (7th edition, 2020), emphasizes clarity and the timeliness of sources. It uses an author-date citation system for in-text citations and a reference list for full bibliographic details. APA is designed to ensure consistency in scientific writing, making it easy to trace the origin of ideas.

In-Text Citations in APA

In APA, in-text citations include the author’s last name, the publication year, and, if quoting directly, the page number (preceded by “p.” or “pp.”). These are placed in parentheses at the end of a sentence or integrated into the text.

Example:

• Storytelling is a universal human trait (Smith, 2020, p. 45).
• According to Smith (2020), storytelling is a universal human trait (p. 45).

For sources with no author, use a shortened title in quotation marks:

Example:

• New teaching methods are gaining traction (“Innovative Teaching,” 2019).

For sources with two authors, include both names:

Example:

• (Johnson & Lee, 2019)

For three or more authors, use the first author’s last name followed by “et al.” from the first citation:

Example:

• (Brown et al., 2019)

If citing multiple works in one parenthesis, separate them with semicolons and list them alphabetically:

Example:

• (Brown et al., 2019; Smith, 2020)

Reference List Entries in APA

The reference list, placed at the end of your paper, provides full details for all cited sources. Entries follow this general structure:

1. Author(s). (Last Name, Initials)
2. (Year).
3. Title of source. (Only capitalize the first word of the title and subtitle)
4. Source information. (e.g., publisher, journal details, DOI, URL)

Book Citation

Format:Author’s Last Name, Initials. (Year). Title of book. Publisher.

Example:Smith, J. (2020). The art of storytelling. Penguin Books.

Journal Article Citation

Format:Author’s Last Name, Initials. (Year). Title of article. Title of Journal, volume(issue), page range. DOI (if available).

Example:Johnson, E., & Lee, R. (2019). Cultural influences on learning. Journal of Education, 45(3), 123-135. https://doi.org/10.1000/xyz123

Website Citation

Format:Author’s Last Name, Initials (if available). (Year, Month Day). Title of webpage. Site Name. URL

Example:Doe, J. (2021, March 15). The future of online learning. Education Today. https://www.educationtoday.org/future-learning

If no author is provided, start with the title, followed by the date and source information.

Multiple Authors

• Up to 20 authors: List all authors’ last names and initials. Example: Johnson, E., Lee, R., & Patel, S.
• More than 20 authors: List the first 19 authors, followed by an ellipsis (…), then the last author’s name.

Formatting the Reference List

• Title: Center “References” at the top of the page (no bold or italics).
• Alphabetization: Arrange entries alphabetically by the author’s last name or, if no author, by the title.
• Hanging Indent: Indent the second and subsequent lines of each entry by 0.5 inches.
• Double Spacing: Use double spacing throughout, with no extra spaces between entries.

Key Differences Between MLA and APA

Practical Tips for Citing in MLA and APA

1. Use Citation Tools: Tools like Zotero, EndNote, or citation generators (e.g., Purdue OWL’s citation tool) can format citations accurately, but always double-check their output against official guidelines.
2. Consult Official Guides: Refer to the MLA Handbook (9th ed.) or APA Publication Manual (7th ed.) for complex sources or edge cases.
3. Be Consistent: Stick to one style throughout your paper. Mixing MLA and APA formats can confuse readers and undermine credibility.
4. Track Sources Early: Record bibliographic details as you research to avoid scrambling later.
5. Check for DOIs: For journal articles, include a DOI (Digital Object Identifier) if available, especially in APA, as it provides a stable link to the source.

Common Citation Challenges and Solutions

Missing Information

• No Author: Use the title in place of the author in both MLA and APA. For in-text citations, shorten the title if it’s long.
  • MLA Example: (“Innovative Teaching” 12)
  • APA Example: (“Innovative Teaching,” 2019)
• No Date: In MLA, use “n.d.” in the Works Cited entry. In APA, use “n.d.” in both in-text citations and the reference list.
  • Example: (Smith, n.d.)
• No Page Numbers: In MLA, omit the page number. In APA, use paragraph numbers (e.g., para. 4) or section headings if available.

Electronic Sources

• URLs and DOIs: In MLA, include URLs for web sources (omit “https://” unless necessary). In APA, prioritize DOIs; if unavailable, include a URL without “Retrieved from.”
• Access Dates: MLA typically omits access dates unless the source is likely to change (e.g., wikis). APA does not require access dates unless no publication date is available.

Multiple Sources by the Same Author

• MLA: Include a shortened title in the in-text citation to distinguish sources:
  • (Smith, Storytelling 45)
  • (Smith, Narrative 72)
• APA: Include the year to differentiate:
  • (Smith, 2020)
  • (Smith, 2018)

Examples of Complex Citations

MLA: Edited Book

Format:Editor’s Last Name, First Name, editor. Title of Book. Publisher, Year.

Example:Thompson, Lisa, editor. Modern Literary Criticism. Oxford UP, 2018.

APA: Edited Book Chapter

Format:Author’s Last Name, Initials. (Year). Title of chapter. In Editor’s Initials. Last Name (Ed.), Title of book (pp. page range). Publisher.

Example:Brown, S. (2017). The role of narrative in education. In L. Thompson (Ed.), Modern literary criticism (pp. 45-60). Oxford University Press.

MLA: YouTube Video

Format:Author’s Last Name, First Name (or Username). “Title of Video.” YouTube, uploaded by Uploader’s Name, Date, URL.

Example:Khan Academy. “Introduction to Citation.” YouTube, uploaded by Khan Academy, 10 Feb. 2020, www.youtube.com/watch?v=xyz123.

APA: YouTube Video

Format:Author’s Last Name, Initials (or Username). (Year, Month Day). Title of video [Video]. YouTube. URL

Example:Khan Academy. (2020, February 10). Introduction to citation [Video]. YouTube. https://www.youtube.com/watch?v=xyz123

Avoiding Plagiarism

Proper citation is essential to avoid plagiarism, which involves using someone else’s ideas or words without credit. To ensure ethical writing:

• Cite all direct quotes, paraphrases, and summaries.
• Use quotation marks for verbatim text.
• Paraphrase carefully by rephrasing ideas in your own words and citing the source.
• When in doubt, cite. Over-citing is better than risking plagiarism.

Conclusion

Mastering MLA and APA citation formats is a valuable skill that enhances the credibility and professionalism of your academic work. By understanding the rules for in-text citations, reference lists, and formatting, you can confidently cite a wide range of sources, from books to websites. While MLA emphasizes authorship and page numbers for humanities research, APA prioritizes publication dates for currency in the social sciences. With practice and attention to detail, you can navigate both styles effectively, ensuring your work is both credible and ethically sound.

For further guidance, consult the official MLA Handbook or APA Publication Manual, and leverage citation tools to streamline the process. By citing accurately, you contribute to the academic conversation while respecting the intellectual contributions of others.