Sansone, C., & Harackiewicz, J. M. (2000). Intrinsic and extrinsic motivation: The search for optimal motivation and performance. San Diego : Academic Press.
Chicago Style (17th ed.) CitationSansone, Carol, and Judith M. Harackiewicz. Intrinsic and Extrinsic Motivation: The Search for Optimal Motivation and Performance. San Diego : Academic Press, 2000.
MLA (9th ed.) CitationSansone, Carol, and Judith M. Harackiewicz. Intrinsic and Extrinsic Motivation: The Search for Optimal Motivation and Performance. San Diego : Academic Press, 2000.
Warning: These citations may not always be 100% accurate.