Citazione Stile APA (7a Edizione)

Spanier, J. W. (1977). American foreign policy since World War II (7th ed.). Praeger.

Citazione stile Chigago Style (17a edizione)

Spanier, John W. American Foreign Policy Since World War II. 7th ed. New York: Praeger, 1977.

Citatione MLA (9a ed.)

Spanier, John W. American Foreign Policy Since World War II. 7th ed. Praeger, 1977.