De Bono, Edward. <br/><br/>
Six Thinking Hats 

 - London  Penguin Books  2000 
 - xiii, 177 p.  19 cm ; Pbk 
<br/><br/> $19.99 
<br/><br/><label>ISBN: </label>978-0140296662 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>153.42