Cita APA (7th ed.)

Boucher, D., & Kelly, P. J. (2009). Political thinkers: From Socrates to the present (2nd ed.). Oxford University Press.

Cita Chicago (17th ed.)

Boucher, David, i Paul Joseph Kelly. Political Thinkers: From Socrates to the Present. 2nd ed. New York: Oxford University Press, 2009.

Cita MLA (9th ed.)

Boucher, David, i Paul Joseph Kelly. Political Thinkers: From Socrates to the Present. 2nd ed. Oxford University Press, 2009.