Population, ecology, and social evolution / editor, Steven Polgar. Population, ecology, and social evolution. Polgar, Steven, 1931- International Congress of Anthropological and Ethnological Sciences (9th :, 1973 : Chicago, Ill.) Social evolution Congresses. Population Congresses. Human ecology Congresses. GN360 .I57 1973 301.32 301.32 20 POP Includes bibliographies and indexes. The Hague : Mouton ; Chicago : distributed by Aldine, c1975. c1975. 1975 Text x, 354 p. ; eng World anthropology