APA (7th ed.) Citation

Kotler, P., & Armstrong, G. (2013). Principles of marketing (horizon ed. ; 14th ed.). Pearson Education.

Chicago Style (17th ed.) Citation

Kotler, Philip, and Gary Armstrong. Principles of Marketing. horizon ed. ; 14th ed. Essex, England: Pearson Education, 2013.

MLA (9th ed.) Citation

Kotler, Philip, and Gary Armstrong. Principles of Marketing. horizon ed. ; 14th ed. Pearson Education, 2013.