De Bono, Edward,  1933- <br/><br/>
Letters to thinkers :  further thoughts on lateral thinking / 
Edward de Bono. 
 - London :  Penguin Books,  1988. 
 - 325 p. :  ill. ;  22 cm. 
<br/><br/> 'Based on material taken from a series of  Letters to Thinkers which were published periodically between 1982 and 1984'-- p.7. 
<br/><br/><label>ISBN: </label>0140146482 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Thought and thinking.<br/>Lateral thinking.