APA (7th ed.) Citation

Trefousse, H. L. (1969). Germany and American neutrality, 1939-1941. Octagon Books.

Chicago Style (17th ed.) Citation

Trefousse, Hans Louis. Germany and American Neutrality, 1939-1941. New York: Octagon Books, 1969.

MLA (9th ed.) Citation

Trefousse, Hans Louis. Germany and American Neutrality, 1939-1941. Octagon Books, 1969.

Warning: These citations may not always be 100% accurate.