Gaya APA

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

Gaya Chicago

Zyman, Sergio. The end of marketing as we know it. Singapore: Harper Business, 1999. Text.

Gaya MLA

Zyman, Sergio. The end of marketing as we know it. Singapore: Harper Business, 1999. Text.

Gaya Turabian

Zyman, Sergio. The end of marketing as we know it. Singapore: Harper Business, 1999. Print.