Παραπομπή APA

Cofer, C. N., & Appley, M. H. (1980). Motivation: Theory and research. Wiley eastern.

Παραπομπή Chicago Style

Cofer, Charles N., και Mortimer H. Appley. Motivation: Theory and Research. New Delhi: Wiley eastern, 1980.

Παραπομπή MLA

Cofer, Charles N., και Mortimer H. Appley. Motivation: Theory and Research. Wiley eastern, 1980.