The Central Bilād Al-Sūdān : Tradition and adaptations. Essays on the geography and economic and political history of the Sudanic Belt. Proceedings of the third International Conference of the Institute of African and Asian Studies, University of Khartoum, held from 8 to 13 November 1977
Edited by Yūsuf Fadl Hasan and Paul Doornbos
Bok Engelsk 1979