Gaya APA
Posner, Richard A. (1990).
The Problems of Jurisprudence (1).
Harvad University Press:
London.
Gaya Chicago
Posner, Richard A.
The Problems of Jurisprudence.
1
Harvad University Press:
London,
1990.
Text.
Gaya MLA
Posner, Richard A.
The Problems of Jurisprudence.
1
Harvad University Press:
London,
1990.
Text.
Gaya Turabian
Posner, Richard A.
The Problems of Jurisprudence.
1
Harvad University Press:
London,
1990.
Print.