Kotler, P. (2006). Principles of marketing (11th ed.). Pearson Education.
Chicago ZitierstilKotler, Philip. Principles of Marketing. 11th ed. Delhi: Pearson Education, 2006.
MLA ZitierstilKotler, Philip. Principles of Marketing. 11th ed. Pearson Education, 2006.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.