John P. Jackson Jr.: Definitional Argument in Evolutionary Psychology and Cultural Anthropology. In: Science in Context. 23, Nr. 1, März 2010, S. 121–150 (PDF; 128 kB). doi:10.1017/S0269889709990263.
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Douglas Cazaux Sackman: Wild Men: Ishi and Kroeber in the Wilderness of Modern America. Oxford University Press, New York 2010, ISBN 978-0-19-517852-4, S. 286.
John P. Jackson Jr.: Definitional Argument in Evolutionary Psychology and Cultural Anthropology. In: Science in Context. 23, Nr. 1, März 2010, S. 121–150 (PDF; 128 kB). doi:10.1017/S0269889709990263.