APA (7th ed.) Citation

Hassen, M. (1990). The Oromo of Ethiopia: A history, 1570-1860. Cambridge University Press.

Chicago Style (17th ed.) Citation

Hassen, Mohammed. The Oromo of Ethiopia: A History, 1570-1860. Cambridge ; New York: Cambridge University Press, 1990.

MLA (9th ed.) Citation

Hassen, Mohammed. The Oromo of Ethiopia: A History, 1570-1860. Cambridge University Press, 1990.