Kotler, P. (1997). Marketing management: Analysis planning implementation and control (9th ed.). PHI.
Chicago ZitierstilKotler, Philip. Marketing Management: Analysis Planning Implementation and Control. 9th ed. New Delhi: PHI, 1997.
MLA ZitierstilKotler, Philip. Marketing Management: Analysis Planning Implementation and Control. 9th ed. PHI, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.