APA-referens (7:e uppl.)

Adams, W. R. (1980). PREP: For better reading. Holt, Rinehart and Winston.

Chicago-referens (17:e uppl.)

Adams, W. Royce. PREP: For Better Reading. New York: Holt, Rinehart and Winston, 1980.

MLA-referens (8:e uppl.)

Adams, W. Royce. PREP: For Better Reading. Holt, Rinehart and Winston, 1980.