APA (7th ed.) Citation

Zoll, D. A. (1974). Twentieth century political philosophy. Prentice-Hall.

Chicago Style (17th ed.) Citation

Zoll, Donald Atwell. Twentieth Century Political Philosophy. Englewood Cliffs, N. J: Prentice-Hall, 1974.

MLA (9th ed.) Citation

Zoll, Donald Atwell. Twentieth Century Political Philosophy. Prentice-Hall, 1974.