Crystal, David. <br/><br/>
Language death. 

 - United Kingdom :  Cambridge University Press ,  2000. 
 - 198 p.  22 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0521653215 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Languages.
<br/><br/><label>Dewey Class. No.: </label>410 CRY