"John Christopher" <br/><br/>
The sword of the spirits 

 -  Harmondsworth : Puffin in association with Hamilton, 1973, c1972.  1973 
 - 153 
<br/><br/><label>ISBN: </label>0140306307 
<br/><br/><label>Dewey Class. No.: </label>F823  / 3286