Nalder, Leonard Fielding, 1888- A tribal survey of Mongalla province by members of the province staf f and Church Missionary Society / Edited by L. F. Nalder. - London : Negro Universities Press, [1970]. - viii, 232 p. : illus., map ; 22 cm. Subjects--Topical Terms: Ethnology ----Sudan, Egyptian.----Folklore ----Sudan.---- Subjects--Geographic Terms: Mongalla (Province). Sudan, Egyptian -- Languages. Dewey Class. No.: 572.9629 NAL