APA (7th ed.) Citation

Deci, E. L., & Ryan, R. M. (1985). Intrinsic motivation and self-determination in human behavior. Plenum Press.

Chicago Style (17th ed.) Citation

Deci, Edward L., and Richard M. Ryan. Intrinsic Motivation and Self-determination in Human Behavior. New York, N.Y. [u.a.]: Plenum Press, 1985.

MLA (9th ed.) Citation

Deci, Edward L., and Richard M. Ryan. Intrinsic Motivation and Self-determination in Human Behavior. Plenum Press, 1985.