Kotler, P. (1990). Marketing Management/6e (6th ed.). P.H.I.
Chicago Edition CitationKotler, P. Marketing Management/6e. 6th ed. P.H.I, 1990.
Cita MLAKotler, P. Marketing Management/6e. 6th ed. P.H.I, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.