Crystal, David. <br/><br/>
Cambridge paper back encyclopedia  

 - 3rd edition. 
 - London :  Cambridge Uni,  2007 
 - 1071. 
<br/><br/><label>ISBN: </label>8175960736 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Knowledge
<br/><br/><label>Dewey Class. No.: </label>001  / CRY