Dicks, Terrance <br/><br/>
Doctor who: the krotons .-0 426 20099 3 

 - W. H. Allen & Co.,Ltd., London  1981 
 - 124 
<br/><br/><label>ISBN: </label>0 426 20099 3 
<br/><br/><label>Dewey Class. No.: </label>J823.91 Dic/Doc