Langdon, Ken <br/><br/>
Understand selling:  target customers, close deals, win new sales / 
by Ken Langdon 
 - London :  Dorling Kindersley Limited,  2006. 
<br/><br/><label>ISBN: </label>1405315903 
<br/><br/><label>Subjects--Index Terms: </label>Canvassing - Customers