Kent V. Flannery, The cultural evolution of civilizations, Annual Review of Ecology and Systematics 3: 399—426 (1972).
99
Patricia Draper, !Kung Women: Contrasts in Sexual Egalitarianism in Foraging and Sedentary Contexts, in Rayna R. Reiter, ed., Toward an Anthropology of Women (Monthly Review Press, New York, 1975), pp. 77—109.
