Mcloughlin, Peter F.M. Language swithing as index of socialization in republic of sudan - Berkeley Univ Of California 1964 - iv, 72, 7-maps - Univ. of Calf. Pub. in Soc. . Subjects--Topical Terms: Y172:5:18:6780P Dewey Class. No.: Y172:5:18:6780P / J4