APA

Hameso S. Y., . (1997). Ethnicity in Africa. New York: University Press.

Chicago

Hameso Seyoum Y, . 1997. Ethnicity in Africa. New York: University Press.

Harvard

Hameso S. Y., . (1997). Ethnicity in Africa. New York: University Press.

MLA

Hameso Seyoum Y, . Ethnicity in Africa. New York: University Press. 1997.