Dyfyniad APA

KOTLER, P., & ARMSTRONG, G. (1996). Principles of marketing.-- ed.7. Prentice Hall.

Dyfyniad Arddull Chicago

KOTLER, Philip, and Gary ARMSTRONG. Principles of Marketing.-- Ed.7. London: Prentice Hall, 1996.

Dyfyniad MLA

KOTLER, Philip, and Gary ARMSTRONG. Principles of Marketing.-- Ed.7. Prentice Hall, 1996.

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