Kotler, P., & Armstrong, G. (2008). Principles of marketing (12th ed.). Pearson/Prentice Hall.
Chicago (17e ed.) BronvermeldingKotler, Philip, en Gary Armstrong. Principles of Marketing. 12th ed. Upper Saddle River, N.J. ; New Delhi: Pearson/Prentice Hall, 2008.
MLA (8e ed.) BronvermeldingKotler, Philip, en Gary Armstrong. Principles of Marketing. 12th ed. Pearson/Prentice Hall, 2008.
Let op: Deze citaties zijn niet altijd 100% accuraat.