Gaya APA
Rachels, James. (1986).
The Elements of moral philosophy .
New York:
McGraw-Hill.
Gaya Chicago
Rachels, James.
The Elements of moral philosophy.
New York:
McGraw-Hill,
1986.
Text.
Gaya MLA
Rachels, James.
The Elements of moral philosophy.
New York:
McGraw-Hill,
1986.
Text.
Gaya Turabian
Rachels, James.
The Elements of moral philosophy.
New York:
McGraw-Hill,
1986.
Print.