Trout, Jack <br/><br/>
Differentiate or die :  survival in our era of killer competition / 
Jack Trout with Steve Rivkin 
 - New York :  John Wiley & Sons,  2000 
 - x, 230 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0471357642  RM 80.20