Harackiewicz, J. M., & Sansone, C. (2000). Intrinsic and extrinsic motivation: The search of optimal motivaton and perfomance. San Diego, Calif.: Academic.
Chicago Style CitationHarackiewicz, Judith M., and Carol Sansone. Intrinsic and Extrinsic Motivation: The Search of Optimal Motivaton and Perfomance. San Diego, Calif.: Academic, 2000.
MLA CitationHarackiewicz, Judith M., and Carol Sansone. Intrinsic and Extrinsic Motivation: The Search of Optimal Motivaton and Perfomance. San Diego, Calif.: Academic, 2000.
Warning: These citations may not always be 100% accurate.