Crystal, David., ed. <br/><br/>
THE PENGUIN concise Encyclopedia 

 - 3rd ed. 
 - London  Penguin Books  2007 
 - x, 1040 p. 
<br/><br/><label>ISBN: </label>9780141026213 
<br/><br/><label>Dewey Class. No.: </label>32  / PEN