Gaya APA
Marketing Concept and Strategies. (1991).
:
Houghton Mifflin Company.
Gaya Chicago
Marketing Concept and Strategies.
ed. 7.
:
Houghton Mifflin Company,
1991.
.
Gaya MLA
Marketing Concept and Strategies.
ed. 7.
:
Houghton Mifflin Company,
1991.
.
Gaya Turabian
Marketing Concept and Strategies.
:
Houghton Mifflin Company,
1991.
.