APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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