Zyman, S. (1999). The end of marketing as we know it. London: Harper Business.
Chicago Style citaatZyman, Sergio. The End of Marketing As We Know It. London: Harper Business, 1999.
MLA citatieZyman, Sergio. The End of Marketing As We Know It. London: Harper Business, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.