Gaya APA
Frankena, William K. (1973).
Ethics (2nd edition).
New Delhi:
Prentice Hall.
Gaya Chicago
Frankena, William K.
Ethics.
2nd edition
New Delhi:
Prentice Hall,
1973.
Text.
Gaya MLA
Frankena, William K.
Ethics.
2nd edition
New Delhi:
Prentice Hall,
1973.
Text.
Gaya Turabian
Frankena, William K.
Ethics.
2nd edition
New Delhi:
Prentice Hall,
1973.
Print.