00556nam a22001457a 4500 0071473866 (hb) 658.81 GSC Gerhard Gschwandtner Mastering the essentials of sales what you need to know to close every sale New York McGraw-Hill 2006 vi, 214 p. : ill. ; 24 cm. Index Included. Sales management Selling Selling power Customer satisfaction Sales success Costumer relationships Selling problems Sales leader FMS BK 4184 4184