Kotler,Philip. (1998). Marketing management (9th ed.). Prentice-Hall of India.
Chicago Style aipamenaKotler,Philip. Marketing Management. 9th ed. New Delhi: Prentice-Hall of India, 1998.
MLA aipamenaKotler,Philip. Marketing Management. 9th ed. Prentice-Hall of India, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.