De Bono, Edward,  1933- <br/><br/>
The 5 day course in thinking 

 - Harmondsworth :  Penguin,  1969 
 - 160p  20cm 
 - (Pelican book. no. A1014.) .
<br/><br/> With a card, 'The L game', as insert. 
<br/><br/><label>ISBN: </label>0140210148 
<br/><br/><label>Dewey Class. No.: </label>153.42 BON