De Bono, Edward,  1933-, <br/><br/>
Six thinking hats / 
Edward de Bono. 
 - xiii, 177 pages ;  19 cm. 
<br/><br/><label>ISBN: </label>9780141033051  RM52.15 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Thought and thinking.