APA (7th ed.) Citation

Heinrichs, W. (1988). Threshold of war: Franklin D. Roosevelt and American entry into World War II. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Heinrichs, Waldo. Threshold of War: Franklin D. Roosevelt and American Entry into World War II. New York u.a: Oxford Univ. Press, 1988.

MLA (8th ed.) Citation

Heinrichs, Waldo. Threshold of War: Franklin D. Roosevelt and American Entry into World War II. Oxford Univ. Press, 1988.