APA-ийн эшлэл(7 дахь хэвлэлт)

Cohen, S. B. (1978). Comic relief: Humor in contemporary american literature. University of Illinois.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Cohen, Sarah Blacher. Comic Relief: Humor in Contemporary American Literature. Urbana: University of Illinois, 1978.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Cohen, Sarah Blacher. Comic Relief: Humor in Contemporary American Literature. University of Illinois, 1978.