Kotler, P., & Keller, K. L. (2006). Marketing management (Twelfth ed.). Prentice Hall.
Cita Chicago (17th ed.)Kotler, Philip, i Kevin Lane Keller. Marketing Management. Twelfth ed. Upper Saddle River, N.J. ; New Delhi: Prentice Hall, 2006.
Cita MLA (8th ed.)Kotler, Philip, i Kevin Lane Keller. Marketing Management. Twelfth ed. Prentice Hall, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.