Cita APA (7th ed.)

Herrick, A. B. (1967). Area handbook for Angola. U.S. Government Printing Office.

Cita Chicago (17th ed.)

Herrick, Allison Butler. Area Handbook for Angola. Washington, D.C: U.S. Government Printing Office, 1967.

Cita MLA (9th ed.)

Herrick, Allison Butler. Area Handbook for Angola. U.S. Government Printing Office, 1967.