APA (7th ed.) Citation

Shepardson, W. H., & Scroggs, W. O. (1941). The United States in world affairs: An account of american foreign relations 1940. Harper.

Chicago Style (17th ed.) Citation

Shepardson, Whitney H., and William O. Scroggs. The United States in World Affairs: An Account of American Foreign Relations 1940. New York: Harper, 1941.

MLA (9th ed.) Citation

Shepardson, Whitney H., and William O. Scroggs. The United States in World Affairs: An Account of American Foreign Relations 1940. Harper, 1941.