APA Citation

Kotler, P., & Armstrong, G. (2001). Principles of marketing (Ninth edition.). New Jersey: Prentice Hall.

Chicago Style Citation

Kotler, Philips, and Gary Armstrong. Principles of Marketing. Ninth edition. New Jersey: Prentice Hall, 2001.

MLA Citation

Kotler, Philips, and Gary Armstrong. Principles of Marketing. Ninth edition. New Jersey: Prentice Hall, 2001.

Warning: These citations may not always be 100% accurate.