Παραπομπή APA

Cofer C N & M H Appley. (1964). Motivation: Theory and research. Wiley eastern Ltd.

Παραπομπή Chicago Style

Cofer C N και M H Appley. Motivation: Theory and Research. New Delhi: Wiley eastern Ltd, 1964.

Παραπομπή MLA

Cofer C N και M H Appley. Motivation: Theory and Research. Wiley eastern Ltd, 1964.