Cita APA (7th ed.)
Kotler, P., & Armstrong, G. (2006). Principles of marketing (11th ed.). Pearson Prentice Hall.
Cita Chicago (17th ed.)
Kotler, Philip, i Gary Armstrong. Principles of Marketing. 11th ed. Upper Saddle River, N.J. ; New Delhi: Pearson Prentice Hall, 2006.
Cita MLA (9th ed.)
Kotler, Philip, i Gary Armstrong. Principles of Marketing. 11th ed. Pearson Prentice Hall, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.