APA استشهاد

Zyman, S. (1999). The end of marketing as we know it. London: Harper Business.

استشهاد بنمط شيكاغو

Zyman, Sergio. The End of Marketing As We Know It. London: Harper Business, 1999.

MLA استشهاد

Zyman, Sergio. The End of Marketing As We Know It. London: Harper Business, 1999.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.