Cita APA

Kotler, P., & Armstrong, G. (1999). Principles of marketing (9 ed.). Prentice Hall.

Citación estilo Chicago

Kotler, Philip, and Gray Armstrong. Principles of Marketing. 9 ed. London ; New York: Prentice Hall, 1999.

Cita MLA

Kotler, Philip, and Gray Armstrong. Principles of Marketing. 9 ed. Prentice Hall, 1999.

Warning: These citations may not always be 100% accurate.