Παραπομπή σε μορφή APA (7η εκδ.)

(1995). Managing Sales Leads How To Turn Every Prospect Into A Costumer Bob Donath ... [et Al.]. NTC Business Books.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Managing Sales Leads How To Turn Every Prospect Into A Costumer Bob Donath ... [et Al.]. NTC Business Books, 1995.

Παραπομπή σε μορφή MLA (8th εκδ.)

Managing Sales Leads How To Turn Every Prospect Into A Costumer Bob Donath ... [et Al.]. NTC Business Books, 1995.