De Bono, Edward <br/><br/>
Six thinking hats 

 - U.K  Penguin Books  1999 
 - 177 
<br/><br/><label>ISBN: </label>140296662 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PERSONALITY DEVELOPMENT
<br/><br/><label>Dewey Class. No.: </label>658.3 BON/S