APA (7th ed.) Citation

Ryan, R. M., & Deci, E. L. (2018). Self-determination theory: Basic psychological needs in motivation, development, and wellness (Paperback edition 2018.). Guilford Press.

Chicago Style (17th ed.) Citation

Ryan, Richard M., and Edward L. Deci. Self-determination Theory: Basic Psychological Needs in Motivation, Development, and Wellness. Paperback edition 2018. New York: Guilford Press, 2018.

MLA (9th ed.) Citation

Ryan, Richard M., and Edward L. Deci. Self-determination Theory: Basic Psychological Needs in Motivation, Development, and Wellness. Paperback edition 2018. Guilford Press, 2018.

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