Dyfyniad APA
Kotler, P., & Keller, K. L. (2009). Marketing management (13th ed.). Prentice Hall.
Dyfyniad Arddull Chicago
Kotler, Philip, and Kevin Lane Keller. Marketing Management. 13th ed. New Jersey: Prentice Hall, 2009.
Dyfyniad MLA
Kotler, Philip, and Kevin Lane Keller. Marketing Management. 13th ed. Prentice Hall, 2009.
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