APA (7th ed.) Citation

Drummond, D. F. (1968). The passing of American neutrality, 1937-1941. Greenwood Press.

Chicago Style (17th ed.) Citation

Drummond, Donald Francis. The Passing of American Neutrality, 1937-1941. New York: Greenwood Press, 1968.

MLA (9th ed.) Citation

Drummond, Donald Francis. The Passing of American Neutrality, 1937-1941. Greenwood Press, 1968.