The situation of the Indian in South America : contributions to the study of inter-ethnic conflict in the non-Andean regions of South America : symposium on inter-ethnic conflict in South America, organized by the Ethnology department of the University of Berne (Switzerland) and sponsored by the Programme to combat racism and the commission of the churches on international affairs of the World council of churches, Bridgetown, Barbados, 25-30 January 1971 / ed. by W. Dostal ; [transl. of the contrib. written in Spanish and Portuguese by W.J. O'Hara].