Why Citation Styles Matter
Citation styles are standardized systems for documenting sources in academic writing. Using the correct style — and using it consistently — demonstrates academic integrity, allows readers to locate your sources, and signals that you understand your field's conventions. The two most widely required styles in English-language education are APA (American Psychological Association) and MLA (Modern Language Association).
At a Glance: APA vs. MLA
| Feature | APA (7th Edition) | MLA (9th Edition) |
|---|---|---|
| Primary disciplines | Social sciences, psychology, education, nursing | Humanities, literature, languages, arts |
| In-text citation format | Author, Year (e.g., Smith, 2022) | Author, Page (e.g., Smith 45) |
| Reference list title | References | Works Cited |
| Date placement | Immediately after author name | Near the end of the citation |
| Emphasis on | When published (recency matters) | Where found (location matters) |
| Title capitalization | Sentence case for articles/books | Title case for all sources |
Understanding APA Style
APA style was developed to serve fields where the date of research matters most. In psychology or social science, a study from 2005 and a study from 2023 can represent very different understandings of an issue. Therefore, APA places the publication year directly after the author's name in both in-text citations and the reference list.
APA In-Text Citation Example
Research suggests that spaced repetition significantly improves long-term retention (Kornell & Bjork, 2008).
APA Reference List Entry (Journal Article)
Kornell, N., & Bjork, R. A. (2008). Learning concepts and categories: Is spacing the "enemy of induction"? Psychological Science, 19(6), 585–592.
Understanding MLA Style
MLA style is designed for the humanities, where the location of a claim within a text — the specific page number — is often what matters. When analyzing a novel or poem, readers need to find the exact passage you are discussing.
MLA In-Text Citation Example
Fitzgerald uses the green light as a symbol of Gatsby's unattainable dreams (Fitzgerald 180).
MLA Works Cited Entry (Book)
Fitzgerald, F. Scott. The Great Gatsby. Scribner, 1925.
How to Know Which Style to Use
When in doubt, follow your instructor's explicit instructions. If none are given, consider the subject area:
- Use APA for: psychology, sociology, education, nursing, business, economics, political science
- Use MLA for: English literature, foreign languages, comparative literature, cultural studies, media studies
- Chicago/Turabian is common in: history, philosophy, and some fine arts disciplines
The Most Common Mistakes in Both Styles
- APA: Forgetting to include a DOI or URL for journal articles found online
- APA: Using title case for article/book titles (should be sentence case)
- MLA: Omitting the medium of publication or container information
- MLA: Placing the date in the wrong position in a Works Cited entry
- Both: Inconsistent hanging indent formatting on the reference/works cited page
Quick Reference Tools
Rather than memorizing every rule, use authoritative quick-reference tools:
- The Purdue OWL (owl.purdue.edu) offers free, comprehensive guides for both APA and MLA.
- The official APA Style website (apastyle.apa.org) provides style blog posts and examples.
- The MLA Style Center (style.mla.org) is the authoritative source for MLA questions.
When using a citation generator, always double-check its output against an authoritative style guide — automated tools make mistakes, and the responsibility for accuracy falls on you.