APA ציטוט

Kotler, P., & Philip Kotler; Gary Armstrong. (2015). Principles of marketing. Boston: Pearson.

Trích dẫn kiểu Chicago

Kotler, Philip, và Philip Kotler; Gary Armstrong. Principles of Marketing. Boston: Pearson, 2015.

ציטוט MLA

Kotler, Philip, và Philip Kotler; Gary Armstrong. Principles of Marketing. Boston: Pearson, 2015.