Gaya APA
Erwin, R, .. (1991).
VIRTUES AND RIGHTS, The Moral Philosophy Of Thomas Hobbes (1).
San Francsco . oxford:
Westvie Press.
Gaya MLA
Erwin, R.E, ..
"VIRTUES AND RIGHTS, The Moral Philosophy Of Thomas Hobbes".
1
San Francsco . oxford:
Westvie Press,
1991.
Text.