Cita APA (7a ed.)

Kotler, P. (1989). Principles of marketing (3rd.). Prentice Hall.

Cita Chicago Style (17a ed.)

Kotler, Philip. Principles of Marketing. 3rd. New Delhi: Prentice Hall, 1989.

Cita MLA (9a ed.)

Kotler, Philip. Principles of Marketing. 3rd. Prentice Hall, 1989.