Cita APA (7th ed.)

Kotler, P., & Armstrong, G. (2008). Principles of marketing (12th internationl ed.). Pearson Prentice Hall.

Cita Chicago (17th ed.)

Kotler, Philip, i Gary Armstrong. Principles of Marketing. 12th internationl ed. New Jersey: Pearson Prentice Hall, 2008.

Cita MLA (9th ed.)

Kotler, Philip, i Gary Armstrong. Principles of Marketing. 12th internationl ed. Pearson Prentice Hall, 2008.