De Bono, Edward. <br/><br/>
Lateral thinking :  creativity step by step / 
Edward De Bono. 
 - New York :  Harper & Row,  1970. 
 - 300 p. 
<br/><br/><label>ISBN: </label>0060903252 :  KES 2,950 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lateral thinking.