APA (7th ed.) Citation

Simoons, F. J. (1960). Northwest Ethiopia; peoples and economy. University of Wisconsin Press.

Chicago Style (17th ed.) Citation

Simoons, Frederick J. Northwest Ethiopia; Peoples and Economy. Madison: University of Wisconsin Press, 1960.

MLA (9th ed.) Citation

Simoons, Frederick J. Northwest Ethiopia; Peoples and Economy. University of Wisconsin Press, 1960.