. Donald T. Campbell, “On the Conflicts between Biological and Social Evolution and between Psychology and Moral Tradition,” in this issue.
. Robert L. Munroe and Ruth H. Munroe, Crow‐cultural Human Development (Monterey, Calif.: Brooks/Cole Publishing Co., 1975); J. W. M. Whiting and B. B. Whiting, “Altruistic and Egoistic Behavior in Six Cultures,” Anthropological Studies 9 (1973): 56–66; idem, Children of Six Cultures: A Psycho‐cultural Analysis (Cambridge, Mass.: Harvard University Press, 1975).
. L. C.Freeman and
R. F.Winch, “Societal Complexity: An Empirical Test of a Typology of Societies,”
. J. D. Herzog, “Religious Education and Socio‐cultural Complexity: A Cross‐cultural Study” (paper presented at the meeting of the American Anthropological Association, Philadelphia, Pennsylvania, November 1961).
. Campbell.
. G. P. Murdock, “The Common Denominator of Cultures,” in The Science of Man in the World Crisis, ed. R. Linton (New York: Columbia University Press, 1945).