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1
Does altruism exist? : culture, genes, and the welfare of others
New Haven : [West Conshohocken, PA] : Yale University Press ; Templeton Press, 2015Format: Book
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2
Unto others : the evolution and psychology of unselfish behavior
Cambridge, Mass. ; London : Harvard University Press, 1999
1st Harvard University Press pbk. ed.Format: Book
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3
Unto others : the evolution and psychology of unselfish behavior
Cambridge, Mass. : Harvard University Press, 1999
1st Harvard University Press paperback ed.Format: Book
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4
Unto others : the evolution and psychology of unselfish behavior
Cambridge, Mass. : Harvard University Press, 1998Format: Book