APA (7th ed.) Citation

Craig, G. A., & Gilbert, F. (1965). The diplomats, 1919-1939. Atheneum.

Chicago Style (17th ed.) Citation

Craig, Gordon Alexander, and Felix Gilbert. The Diplomats, 1919-1939. New York: Atheneum, 1965.

MLA (9th ed.) Citation

Craig, Gordon Alexander, and Felix Gilbert. The Diplomats, 1919-1939. Atheneum, 1965.