Phelps, Edmund S., editor. “Index.” Altruism, Morality, and Economic Theory, Russell Sage Foundation, New York, 1975, pp. 229–232, www.jstor.org/stable/10.7758/9781610446792.20. Accessed 20 Jan. 2021.
Index. (1975). In Phelps E. (Ed.), Altruism, Morality, and Economic Theory (pp. 229-232). New York: Russell Sage Foundation. Retrieved January 20, 2021, from http://www.jstor.org/stable/10.7758/9781610446792.20
"Index." In Altruism, Morality, and Economic Theory, edited by Phelps Edmund S., 229-32. New York: Russell Sage Foundation, 1975. Accessed January 20, 2021. http://www.jstor.org/stable/10.7758/9781610446792.20.
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