Cita APA (7th ed.)

Beard, C. A., & Smith, G. H. E. (1934). The idea of national interest: An analytical study in American foreign policy. The Macmillan company.

Cita Chicago (17th ed.)

Beard, Charles Austin, i George Howard Edward Smith. The Idea of National Interest: An Analytical Study in American Foreign Policy. New York: The Macmillan company, 1934.

Cita MLA (9th ed.)

Beard, Charles Austin, i George Howard Edward Smith. The Idea of National Interest: An Analytical Study in American Foreign Policy. The Macmillan company, 1934.