APA

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

Chicago

Beard Charles Austin, Smith George H E, . 1934. The idea of national interest: an analytical study in American foreign policy. New York: Macmillan.

Harvard

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

MLA

Beard Charles Austin, Smith George H E, . The idea of national interest: an analytical study in American foreign policy. New York: Macmillan. 1934.