Fifty short science fiction tales / 
edited by Isaac Asimov, Groff Conklin 
 - London  Collier Books  1963 
 - 287p.  ill.  18 cm. 
<br/><br/><label>ISBN: </label>0020163908  RM15.90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English fiction--Short stories