Ehret, Christopher. Sudanic Civilization / by Christopher Ehret. - Washington D.C. : American Historical Association, 2003. - vi, 51 p. ; 23 cm. - Essays on global and comparative history . ISBN: 0872291251 Subjects--Geographic Terms: Sudan (Region)--History.Africa--History. LC Class. No.: DT 154.6 / .E37 2003