APA (7th ed.) Citation

Kotler, P., & Armstrong, G. (2008). Principles of marketing (12. ed.). Pearson Prentice Hall.

Chicago Style (17th ed.) Citation

Kotler, Philip, and Gary Armstrong. Principles of Marketing. 12. ed. Upper Saddle River, NJ: Pearson Prentice Hall, 2008.

MLA (9th ed.) Citation

Kotler, Philip, and Gary Armstrong. Principles of Marketing. 12. ed. Pearson Prentice Hall, 2008.