APA (7th ed.) Citation

Benn, S. I., & Peters, R. S. (1965). The principles of political thought. Free Press.

Chicago Style (17th ed.) Citation

Benn, Stanley I., and Richard Stanley Peters. The Principles of Political Thought. New York: Free Press, 1965.

MLA (9th ed.) Citation

Benn, Stanley I., and Richard Stanley Peters. The Principles of Political Thought. Free Press, 1965.