Kotler, P. (1997). Marketing management (9th ed.). Prentice Hall of India.
Chicago Style aipamenaKotler, Philip. Marketing Management. 9th ed. New Delhi: Prentice Hall of India, 1997.
MLA aipamenaKotler, Philip. Marketing Management. 9th ed. Prentice Hall of India, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.