Cita APA (7th ed.)

Kotler, P., & Armstrong, G. (1994). Principles of marketing (6th ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Kotler, Philip, i Gary Armstrong. Principles of Marketing. 6th ed. Englewood Cliffs, N.J: Prentice-Hall, 1994.

Cita MLA (9th ed.)

Kotler, Philip, i Gary Armstrong. Principles of Marketing. 6th ed. Prentice-Hall, 1994.