Cita APA (7th ed.)

Combs, J. A. (1986). The history of American foreign policy. Knopf.

Cita Chicago (17th ed.)

Combs, Jerald A. The History of American Foreign Policy. New York: Knopf, 1986.

Cita MLA (8th ed.)

Combs, Jerald A. The History of American Foreign Policy. Knopf, 1986.