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

 - England  Penguin Books  1999 
 - 177p 
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label> 575 
<br/><br/><label>Dewey Class. No.: </label>O25  / B644