De Bono, Edward <br/><br/>
Six thinking hats 
Edward de Bono 
 - 1st Back Bay pbk. ed., rev. and updated 
 - New Delhi  Penguin Books  1999 
 - vii , 177 p. ; 21 cm 
<br/><br/><label>ISBN: </label>9780141033051 
<br/><br/><label>ISSN: </label>265848 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Thought and thinking
<br/><br/><label>Dewey Class. No.: </label>153.42 MUH