KOTLER PHILIP. (1997). MARKETING MANAGEMENT: ANALYSIS PLANNING IMPLEMETION & CONTROL (9TH.). PRENTICE HALL.
Chicago (17e ed.) BronvermeldingKOTLER PHILIP. MARKETING MANAGEMENT: ANALYSIS PLANNING IMPLEMETION & CONTROL. 9TH. NEW DELHI: PRENTICE HALL, 1997.
MLA (9e ed.) BronvermeldingKOTLER PHILIP. MARKETING MANAGEMENT: ANALYSIS PLANNING IMPLEMETION & CONTROL. 9TH. PRENTICE HALL, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.