Cita APA (7a ed.)
Kotler, P. (1991). Principles of marketing (5th ed.). Prentice-Hall.
Cita Chicago Style (17a ed.)
Kotler, Philip. Principles of Marketing. 5th ed. New Delhi: Prentice-Hall, 1991.
Cita MLA (9a ed.)
Kotler, Philip. Principles of Marketing. 5th ed. Prentice-Hall, 1991.
Precaución: Estas citas no son 100% exactas.