Hoover, H. (1952). 40 key questions about our foreign policy: Answered in important addresses and statements delivered between 1941 and 1952. Scarsdale, NY: Updegraff Press.

Hoover, Herbert. 40 Key Questions About Our Foreign Policy: Answered in Important Addresses and Statements Delivered between 1941 and 1952. Scarsdale, NY: Updegraff Press, 1952.

Hoover, Herbert. 40 Key Questions About Our Foreign Policy: Answered in Important Addresses and Statements Delivered between 1941 and 1952. Scarsdale, NY: Updegraff Press, 1952.