The Black kingdom of the Nile

von Bonnet, Charles, 1933-
Cambridge, Massachusetts : Harvard University Press, 2019.
Umfang/Format: xi, 209 pages : illustrations, maps, plans ; 26 cm.

Encyclopedia of Africa

Oxford ; New York : Oxford University Press, 2010.
Umfang/Format: 2 v. : ill., maps ; 29 cm.