Blackmail 
Joanna Strange ...[ve öte.] 
 - Essex  Penguin  1999 
 - 31 p.  20 cm. 
 - Penguin readers level 1.  .
<br/><br/><label>ISBN: </label>0582363675 
<br/><br/><label>Dewey Class. No.: </label>428.6  / BLA