Gaya APA
Singer, Peter. (1991).
A Companion to Ethics (1).
Cambridge - Massachusetts:
Blackwell Publishing.
Gaya Chicago
Singer, Peter.
A Companion to Ethics.
1
Cambridge - Massachusetts:
Blackwell Publishing,
1991.
Text.
Gaya MLA
Singer, Peter.
A Companion to Ethics.
1
Cambridge - Massachusetts:
Blackwell Publishing,
1991.
Text.
Gaya Turabian
Singer, Peter.
A Companion to Ethics.
1
Cambridge - Massachusetts:
Blackwell Publishing,
1991.
Print.