APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Deci, Edward L., and Richard M. Ryan. Intrinsic Motivation and Self-determination in Human Behavior / Edward L. Deci and Richard M. Ryan. New York ; London: Plenum, 1985.

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.