Kotler, P. (1992). Principles of marketing. Prentice Hall.
Chicago Style aipamenaKotler, Philip. Principles of Marketing. New Delhi: Prentice Hall, 1992.
MLA aipamenaKotler, Philip. Principles of Marketing. Prentice Hall, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.