DAVIS KEVIN. (1996). GETTING INTO YOUR CUSTOMERS HEAD: 8 SECRET ROLES OF ? KNOW. CROWN BUSINESS.
Čikaški stil citiranja (17. izdanje)DAVIS KEVIN. GETTING INTO YOUR CUSTOMERS HEAD: 8 SECRET ROLES OF ? KNOW. NEW YORK: CROWN BUSINESS, 1996.
MLA način citiranja (9. izdanje)DAVIS KEVIN. GETTING INTO YOUR CUSTOMERS HEAD: 8 SECRET ROLES OF ? KNOW. CROWN BUSINESS, 1996.
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