Zyman, S. (1999). The end of marketing as we know it. London: Harper Business.
Styl cytowania ChicagoZyman, Sergio. The End of Marketing As We Know It. London: Harper Business, 1999.
Styl cytowania MLAZyman, Sergio. The End of Marketing As We Know It. London: Harper Business, 1999.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..