Lepper, M. R., & Greene, D. (1978). The Hidden costs of reward: New perspectives on the psychology of human motivation. L. Erlbaum Associates distributed by Halsted Press.
Chicago Style (17th ed.) CitationLepper, Mark R., and David Greene. The Hidden Costs of Reward: New Perspectives on the Psychology of Human Motivation. Hillsdale, N.J New York: L. Erlbaum Associates distributed by Halsted Press, 1978.
MLA (9th ed.) CitationLepper, Mark R., and David Greene. The Hidden Costs of Reward: New Perspectives on the Psychology of Human Motivation. L. Erlbaum Associates distributed by Halsted Press, 1978.
Warning: These citations may not always be 100% accurate.