Gaya APA
A Guide to Marketing. (1981).
Illinois:
Learning Systems Company.
Gaya Chicago
A Guide to Marketing.
.
Illinois:
Learning Systems Company,
1981.
.
Gaya MLA
A Guide to Marketing.
.
Illinois:
Learning Systems Company,
1981.
.
Gaya Turabian
A Guide to Marketing.
Illinois:
Learning Systems Company,
1981.
.