Launay Robert Traders without trade Responces to change in two Dyula communities - Cambridge Cambridge University Press 1982 - 188p. cm. - Cambridge studies in social anthropology;42 . ISBN: 0521241790 (hbk) Standard No.: 252,262 Source: Textual Subjects--Topical Terms: SOCIOLOGY Dewey Class. No.: Y765:7:7.N, M2