Cita APA (7th ed.)

Kaplan, I. (1971). Area handbook for Ethiopia (2d ed.). U.S. Government Printing Office.

Cita Chicago (17th ed.)

Kaplan, Irving. Area Handbook for Ethiopia. 2d ed. Washington, D.C: U.S. Government Printing Office, 1971.

Cita MLA (9th ed.)

Kaplan, Irving. Area Handbook for Ethiopia. 2d ed. U.S. Government Printing Office, 1971.