APA (7th ed.) Citation

Gunther, J. (1950). Roosevelt in retrospect: A profile in history / John Gunther. Harper.

Chicago Style (17th ed.) Citation

Gunther, John. Roosevelt in Retrospect: A Profile in History / John Gunther. New York: Harper, 1950.

MLA (8th ed.) Citation

Gunther, John. Roosevelt in Retrospect: A Profile in History / John Gunther. Harper, 1950.