Dyfyniad APA

Kotler, . P. T., & Armstrong, G. (2018). Principles of marketing (17th ed.). New York, NY: Pearson.

Dyfyniad Arddull Chicago

Kotler, Philip T., và Gary Armstrong. Principles of Marketing. 17th ed. New York, NY: Pearson, 2018.

Dyfyniad MLA

Kotler, Philip T., và Gary Armstrong. Principles of Marketing. 17th ed. New York, NY: Pearson, 2018.

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