Holt, P. M., & Daly, M. W. (1988). A history of the Sudan: From the coming of Islam to the present day (4th ed.). Longman.
Citazione stile Chigago Style (17a edizione)Holt, P. M., e Martin W. Daly. A History of the Sudan: From the Coming of Islam to the Present Day. 4th ed. London [u.a.]: Longman, 1988.
Citatione MLA (8a ed.)Holt, P. M., e Martin W. Daly. A History of the Sudan: From the Coming of Islam to the Present Day. 4th ed. Longman, 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.