Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Deci, Edward L., y Richard M. Ryan. Intrinsic Motivation and Self-determination in Human Behavior. New York [etc.]: Plenum, 1985.

Cita MLA (9a ed.)

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