APA (7th ed.) Citation

Sansone, C., & Harackiewicz, J. M. (2000). Intrinsic and extrinsic motivation: The search for optimal motivation and performance. Academic Press.

Chicago Style (17th ed.) Citation

Sansone, Carol, and Judith M. Harackiewicz. Intrinsic and Extrinsic Motivation: The Search for Optimal Motivation and Performance. San Diego [etc.]: Academic Press, 2000.

MLA (9th ed.) Citation

Sansone, Carol, and Judith M. Harackiewicz. Intrinsic and Extrinsic Motivation: The Search for Optimal Motivation and Performance. Academic Press, 2000.