APA aipamena

Richard G. Stevens. (2012). Political Philosophy (1.). Cambridge University Press.

Chicago Style aipamena

Richard G. Stevens. Political Philosophy. 1. Cambridge University Press, 2012.

MLA aipamena

Richard G. Stevens. Political Philosophy. 1. Cambridge University Press, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.