Inglis, John. <br/><br/>
Clear thinking / 
John Inglis and Roger Lewis. 
 - London :  National Extension College,  c1993. 
 - 80p. :  ill., 1facsim. ;  30cm. 
 - Learning skills series .
 - Learning skills series .
<br/><br/>Bibliography: p74. 
<br/><br/><label>ISBN: </label>9780003223477 (pbk) :  £7.95 
<br/><br/><label>Dewey Class. No.: </label>160