Updated
The basic pattern
Put the citation at the end of the sentence, before the period. Give the first word of the Works Cited entry, usually the author’s last name, and the page.
- ParentheticalSleep loss harms memory more than students expect (Walker 112).
- Name in your sentenceWalker argues that sleep loss harms memory (112).
- A quotationStudents report “excessive daytime sleepiness” (Hershner and Chervin 75).
Every case, made by the formatter
One author
(Walker 112)
Two authors
(Hershner and Chervin 75)
Three or more authors
(Aron et al. 350)
No author: the title, shortened
(“About Sleep”)
No page numbers
(Bernstein)
A video: the time stamp
(Walker 00:03:42)
Scripture: book, chapter and verse
(New Oxford Annotated Bible, Gen. 1.1)
Quoted in another source
(qtd. in Walker 112)
More rules
- Two works by one author: add a short title: (Walker, Why We Sleep 112).
- Two authors with one last name: add first initials: (M. Walker 112).
- Two sources at once: separate them with a semicolon: (Walker 112; Hershner and Chervin 75).
- Poetry and plays: line numbers instead of pages, with “line” or “lines” the first time: (lines 5-8). Plays in acts and scenes: (Hamlet 3.1.56-60).
- Labeled locators take a comma: (Bernstein, par. 4), (Walker, ch. 3).
- Block quotations put the citation after the final period. See block quotes.
Common mistakes
- A comma before the page. (Walker 112), not (Walker, 112).
- “p.” or “pg.” MLA writes the number alone.
- The period inside the citation. The period follows it: ...memory (Walker 112).
- A year. MLA citations have no date. That is APA.
Questions
Do I need a citation for every sentence?
No. One citation can cover a passage from one source, as long as it is clear where your words end and the source’s begin.
What if the source has no page numbers?
Leave the number out: (Bernstein). Do not count pages yourself.
How do I cite a source quoted in another source?
Cite the source you read, with “qtd. in”: (qtd. in Walker 112). See indirect sources.