APA (7th ed.) Citation

Perkins, D. (1948). The evolution of American foreign policy. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Perkins, Dexter. The Evolution of American Foreign Policy. New York: Oxford Univ. Press, 1948.

MLA (8th ed.) Citation

Perkins, Dexter. The Evolution of American Foreign Policy. Oxford Univ. Press, 1948.