Cita APA (7th ed.)

Callahan, J. M. (1964). Diplomatic history of the Southern Confederacy. Ungar.

Cita Chicago (17th ed.)

Callahan, James Morton. Diplomatic History of the Southern Confederacy. New York: Ungar, 1964.

Cita MLA (9th ed.)

Callahan, James Morton. Diplomatic History of the Southern Confederacy. Ungar, 1964.