Gaya APA
Marketing. (1989).
Boston:
Hoghton Mifflin Company.
Gaya Chicago
Marketing.
Ed. 6.
Boston:
Hoghton Mifflin Company,
1989.
.
Gaya MLA
Marketing.
Ed. 6.
Boston:
Hoghton Mifflin Company,
1989.
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Gaya Turabian
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Boston:
Hoghton Mifflin Company,
1989.
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