Dyfyniad APA

Kotler, P., & Armstrong, G. A. (2018). Principles of marketing/ 17th ed (17th ed.). Pearson India Education.

Dyfyniad Arddull Chicago

Kotler, Philip, and Gary Agnihotri Armstrong. Principles of Marketing/ 17th Ed. 17th ed. Noida: Pearson India Education, 2018.

Dyfyniad MLA

Kotler, Philip, and Gary Agnihotri Armstrong. Principles of Marketing/ 17th Ed. 17th ed. Pearson India Education, 2018.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.