DeBono, Edward <br/><br/>
Six thinking hats 

 - New York  Penguin Books  1985 
 - xiii, 177  Hb 
<br/><br/><label>ISBN: </label>978-0-141-03305-1 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>153.4