Gaya APA
Spaemann, Robert. (1989).
Basic moral concepts .
London:
Routledge.
Gaya Chicago
Spaemann, Robert.
Basic moral concepts.
London:
Routledge,
1989.
Text.
Gaya MLA
Spaemann, Robert.
Basic moral concepts.
London:
Routledge,
1989.
Text.
Gaya Turabian
Spaemann, Robert.
Basic moral concepts.
London:
Routledge,
1989.
Print.