Kotler, P., & Armstrong, G. (1999). Principles of marketing (9 ed.). Prentice Hall.
Style de citation Chicago (17e éd.)Kotler, Philip, et Gray Armstrong. Principles of Marketing. 9 ed. London ; New York: Prentice Hall, 1999.
Style de citation MLA (9e éd.)Kotler, Philip, et Gray Armstrong. Principles of Marketing. 9 ed. Prentice Hall, 1999.