APA aipamena

Jeffrey A. Winters. (2012). Oligarchy (1.). Cambridge University Press.

Chicago Style aipamena

Jeffrey A. Winters. Oligarchy. 1. Cambridge University Press, 2012.

MLA aipamena

Jeffrey A. Winters. Oligarchy. 1. Cambridge University Press, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.