APA-referens (7:e uppl.)

Crooks, R. L. (1991). Psychology: Science, behavior, and life (2nd ed.). Holt, Rinehart and Winston.

Chicago-referens (17:e uppl.)

Crooks, Robert L. Psychology: Science, Behavior, and Life. 2nd ed. Chicago: Holt, Rinehart and Winston, 1991.

MLA-referens (9:e uppl.)

Crooks, Robert L. Psychology: Science, Behavior, and Life. 2nd ed. Holt, Rinehart and Winston, 1991.