Cita APA (7a ed.)

Joe Oppenheimer. (2012). Principles of Politics (1.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Joe Oppenheimer. Principles of Politics. 1. Cambridge University Press, 2012.

Cita MLA (8a ed.)

Joe Oppenheimer. Principles of Politics. 1. Cambridge University Press, 2012.