Kotler, P. (1991). Marketing Management/7e (7th ed.). P.H.I.
Chicago Edition CitationKotler, P. Marketing Management/7e. 7th ed. Illinois: P.H.I, 1991.
Cita MLAKotler, P. Marketing Management/7e. 7th ed. P.H.I, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.