APA (7th ed.) Citation

Kennan, G. F. (1951). American diplomacy, 1900-1950 (23 th printing.). New American Library.

Chicago Style (17th ed.) Citation

Kennan, George Frost. American Diplomacy, 1900-1950. 23 th printing. New York [etc.]: New American Library, 1951.

MLA (9th ed.) Citation

Kennan, George Frost. American Diplomacy, 1900-1950. 23 th printing. New American Library, 1951.