Cita APA
Heinrichs, W. H. (1989). Threshold of war: Franklin D. Roosevelt and American entry into World War II. Oxford University Press.
Citación estilo Chicago
Heinrichs, Waldo H. Threshold of War: Franklin D. Roosevelt and American Entry into World War II. New York: Oxford University Press, 1989.
Cita MLA
Heinrichs, Waldo H. Threshold of War: Franklin D. Roosevelt and American Entry into World War II. Oxford University Press, 1989.
Warning: These citations may not always be 100% accurate.