De Bono, Edward.  <br/><br/>
The 5-day course in thinking /  
Edward de Bono.  
 - Harmondsworth :   Penguin,   1986.  
 - 160 p. :   ill. ;   20 cm.  
 - Pelican books.  .
<br/><br/><label>ISBN: </label>9780140210149 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>658.4  / DEB