Pagan tribes of the Nilotic Sudan,
by C.G. Seligman and Brenda Z. Seligman ; with an introduction by Sir Harold M. [i.e. A.] MacMichael.
- London : Routledge, 1932.
- xxiv, 565 p. : front., ill., LX pl., maps (1 fold.) fold. geneal. tab. ; 25 cm.
- The Ethnology of Africa .