APA (7th ed.) Citation

Diel, P. (1991). The psychology of motivation (1st U.S. ed.). Hunter House.

Chicago Style (17th ed.) Citation

Diel, Paul. The Psychology of Motivation. 1st U.S. ed. Claremont, CA: Hunter House, 1991.

MLA (9th ed.) Citation

Diel, Paul. The Psychology of Motivation. 1st U.S. ed. Hunter House, 1991.