Seligman, C. G. Pagan tribes of the Nilotic Sudan / C.G. Seligman and Brenda Z. Seligman ; introduced by Sir Harold M. Macmichael. - London : G. Routledge, c 1932. - xxiv, 565 p. : ill. ; 25 cm. - The Ethnology of Africa . Include Index. 314 314 LCCN: Subjects--Topical Terms: Ethnology--Sudan. Dewey Class. No.: 572.9624 / S49p