Cita APA (7th ed.)

Raphael, D. D. (1990). Problems of political philosophy: Problems of political philosophy (2nd ed.). Macmillan.

Cita Chicago (17th ed.)

Raphael, D. D. Problems of Political Philosophy: Problems of Political Philosophy. 2nd ed. Basingstoke: Macmillan, 1990.

Cita MLA (9th ed.)

Raphael, D. D. Problems of Political Philosophy: Problems of Political Philosophy. 2nd ed. Macmillan, 1990.