Cita APA (7a ed.)
Kotler, P., & Armstrong, G. (1999). Principles of marketing (8th ed.). Prentice Hall.
Cita Chicago Style (17a ed.)
Kotler, Philip, y Gary Armstrong. Principles of Marketing. 8th ed. Upper Saddle River, NJ ; New Delhi: Prentice Hall, 1999.
Cita MLA (9a ed.)
Kotler, Philip, y Gary Armstrong. Principles of Marketing. 8th ed. Prentice Hall, 1999.
Precaución: Estas citas no son 100% exactas.