(1995). Managing Sales Leads How To Turn Every Prospect Into A Costumer Bob Donath ... [et Al.]. NTC Business Books.
Čikaški stil citiranja (17. izdanje)Managing Sales Leads How To Turn Every Prospect Into A Costumer Bob Donath ... [et Al.]. NTC Business Books, 1995.
MLA način citiranja (8. izdanje)Managing Sales Leads How To Turn Every Prospect Into A Costumer Bob Donath ... [et Al.]. NTC Business Books, 1995.
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