Gaya APA
Dworkin, Ronald. (2000).
A Matter of principle .
Cambridge:
Harvard University.
Gaya Chicago
Dworkin, Ronald.
A Matter of principle.
Cambridge:
Harvard University,
2000.
Text.
Gaya MLA
Dworkin, Ronald.
A Matter of principle.
Cambridge:
Harvard University,
2000.
Text.
Gaya Turabian
Dworkin, Ronald.
A Matter of principle.
Cambridge:
Harvard University,
2000.
Print.