The use of lateral thinking. 

 - London:   Penguin Books Ltd,   1967.  
 - 137p. ;  21cm. 
<br/><br/><label>ISBN: </label>0140214461 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognition<br/>Intelligence<br/>Knowledge<br/>MENTAL PROCESSES
<br/><br/><label>Dewey Class. No.: </label>1534