Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.