Beckwith, Harry,  1949- <br/><br/>
Selling the invisible :  a field guide to modern marketing / 
Harry Beckwith. 
 - New York :  Warner Books,  c1997. 
 - xx, 252 p. ;  20 cm. 
<br/><br/><label>ISBN: </label>0446520942 
<br/><br/><label>LCCN: </label>96016774  
<br/><br/><label>LC Class. No.: </label>HD9980.5 ..B425 1997  / .B425 1997 
<br/><br/><label>Dewey Class. No.: </label>658.8