APA Edition Citation

Perkins, D. (1948). The evolution of American foreign policy (2nd ed.). Oxford university press.

Chicago Edition Citation

Perkins, Dexter. The Evolution of American Foreign Policy. 2nd ed. New York: Oxford university press, 1948.

MLA Edition Citation

Perkins, Dexter. The Evolution of American Foreign Policy. 2nd ed. Oxford university press, 1948.