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

 - Australia :  Penguin books,  1999. 
 - xiii, 177 p.  18 cm. 
<br/><br/><label>ISBN: </label>9780141037554 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology.
<br/><br/><label>Dewey Class. No.: </label>153.42 BON