Citazione Stile APA (7a Edizione)

Schulzinger, R. D. (1994). American diplomacy in the twentieth century (3a. ed.). Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Schulzinger, Robert D. American Diplomacy in the Twentieth Century. 3a. ed. Nueva York: Oxford University Press, 1994.

Citatione MLA (9a ed.)

Schulzinger, Robert D. American Diplomacy in the Twentieth Century. 3a. ed. Oxford University Press, 1994.