Kotler, P., & Armstrong, G. (1995). Principles of marketing/6e (6th ed.). Prentice-hall.
Chicago Style aipamenaKotler, Philip, and Gary Armstrong. Principles of Marketing/6e. 6th ed. New Delhi: Prentice-hall, 1995.
MLA aipamenaKotler, Philip, and Gary Armstrong. Principles of Marketing/6e. 6th ed. Prentice-hall, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.