Cita APA (7th ed.)

Armstrong, G., & Kotler, P. (2003). Marketing: An introduction (6th ed.). Prentice Hall.

Cita Chicago (17th ed.)

Armstrong, Gary, i Philip Kotler. Marketing: An Introduction. 6th ed. Upper Saddle River, NJ: Prentice Hall, 2003.

Cita MLA (8th ed.)

Armstrong, Gary, i Philip Kotler. Marketing: An Introduction. 6th ed. Prentice Hall, 2003.