APA (7th ed.) Citation

Beard, C. A. (1934). The idea of national interest: An analytical study in American foreign policy. Macmillan.

Chicago Style (17th ed.) Citation

Beard, Charles Austin. The Idea of National Interest: An Analytical Study in American Foreign Policy. New York: Macmillan, 1934.

MLA (9th ed.) Citation

Beard, Charles Austin. The Idea of National Interest: An Analytical Study in American Foreign Policy. Macmillan, 1934.