Ries, Al, and Trout, Jack <br/><br/>
Positioning : 
The Battle for Your Mind 
 - 20th 
 - New York  McGraw-Hill Companies, Inc.  1981 
 - 246 
<br/><br/><label>ISBN: </label>9780070533752 
<br/><br/><label>Subjects--Personal Names: </label> MA Advertising and Public Relations 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Advertising and Public Relations