APA (7th ed.) Citation

Kotler, P., & Armstrong, G. (1994). Principles of marketing (Sixth edition.). Prentice Hall.

Chicago Style (17th ed.) Citation

Kotler, Philips, and Gary Armstrong. Principles of Marketing. Sixth edition. New Jersey: Prentice Hall, 1994.

MLA (9th ed.) Citation

Kotler, Philips, and Gary Armstrong. Principles of Marketing. Sixth edition. Prentice Hall, 1994.