Campbell, H. C. C <br/><br/>
Canadian libraries 

 - 2nd. ed. 
 - London  Clive Bingley  1969[1971] 
 - 114p. : ill. 
<br/><br/><label>ISBN: </label>0851571115 
<br/><br/><label>LC Class. No.: </label>Z 735 Cam