Gaya APA

Tracy, B. (1995). Advanced selling trategies : the proven system of sales indeas, methods and techniques used by top salespeople everywhere . New York: With the permission of george allen & unwin (Publishers) Ltd.

Gaya MLA

Tracy, Brian. "Advanced selling trategies : the proven system of sales indeas, methods and techniques used by top salespeople everywhere". New York: With the permission of george allen & unwin (Publishers) Ltd, 1995. Text.