Gaya APA
SOCIAL contract. (1960).
London:
Oxford University Press.
Gaya Chicago
SOCIAL contract.
.
London:
Oxford University Press,
1960.
Text.
Gaya MLA
SOCIAL contract.
.
London:
Oxford University Press,
1960.
Text.
Gaya Turabian
SOCIAL contract.
London:
Oxford University Press,
1960.
Print.