Gaya APA
Davis, John. (1991).
Greening Business (Cet.1).
USA:
Blacwell.
Gaya Chicago
Davis, John.
Greening Business.
Cet.1
USA:
Blacwell,
1991.
Text.
Gaya MLA
Davis, John.
Greening Business.
Cet.1
USA:
Blacwell,
1991.
Text.
Gaya Turabian
Davis, John.
Greening Business.
Cet.1
USA:
Blacwell,
1991.
Print.