Bacon, Elizabeth. Obok: a study of social structure in Eurasia/ Elizabeth E. Bacon. - New York, Wenner-Gren Foundation for Anthropological Research, 1958. - xv, 235 p., maps, geneal. tables, tables. 26 cm. - Viking Fund publications in anthropology, 25 . Bibliography: p. 217-223. Subjects--Topical Terms: Tribes LC Class. No.: GN490 Dewey Class. No.: 572