Seligman, C. G. Pagan tribes of nilotic sudan - London George Routledge And Sons 1932 - xxiii, 565p. lx plts 38 fig - Ethnology Of Africa 1932 . Subjects--Topical Terms: Y172:1:18:672:N3 Dewey Class. No.: Y172:1:18:672:N3 / G2