Gaya APA
Oligarchy. (2011).
Cambridge:
Cambridge University Press.
Gaya Chicago
Oligarchy.
Ed.1.
Cambridge:
Cambridge University Press,
2011.
Text.
Gaya MLA
Oligarchy.
Ed.1.
Cambridge:
Cambridge University Press,
2011.
Text.
Gaya Turabian
Oligarchy.
Cambridge:
Cambridge University Press,
2011.
Print.