APA (7th ed.) Citation

Ferrell, R. H. (1988). American diplomacy: The twentieth century (4th ed.). W. W. Norton & Company.

Chicago Style (17th ed.) Citation

Ferrell, Robert H. American Diplomacy: The Twentieth Century. 4th ed. New York [a. o.]: W. W. Norton & Company, 1988.

MLA (8th ed.) Citation

Ferrell, Robert H. American Diplomacy: The Twentieth Century. 4th ed. W. W. Norton & Company, 1988.