APA (7th ed.) Citation

Gaddis, J. L. (2011). George F. Kennan: An American life. Penguin Press.

Chicago Style (17th ed.) Citation

Gaddis, John Lewis. George F. Kennan: An American Life. New York: Penguin Press, 2011.

MLA (9th ed.) Citation

Gaddis, John Lewis. George F. Kennan: An American Life. Penguin Press, 2011.