Laing, R. D.  1927- <br/><br/>
Knots / 
by R. D. Laing. 
 - Harmondsworth :  Penguin books in association with William Heinemann,  1971. 
 - 90 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>042273330X