Citazione Stile APA (7a Edizione)

Collins, R. O. (1962). The southern Sudan, 1883-1898, a struggle for control. Yale University Press.

Citazione stile Chigago Style (17a edizione)

Collins, Robert O. The Southern Sudan, 1883-1898, a Struggle for Control. New Haven: Yale University Press, 1962.

Citatione MLA (9a ed.)

Collins, Robert O. The Southern Sudan, 1883-1898, a Struggle for Control. Yale University Press, 1962.