Dyfyniad APA

KOTLER, P., & ARMSTRONG, G. (2006). Principles of marketing.-- ed.11. Pearson Prentice Hall.

Dyfyniad Arddull Chicago

KOTLER, Philip, and Gary ARMSTRONG. Principles of Marketing.-- Ed.11. New Jersey: Pearson Prentice Hall, 2006.

Dyfyniad MLA

KOTLER, Philip, and Gary ARMSTRONG. Principles of Marketing.-- Ed.11. Pearson Prentice Hall, 2006.

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