Crystal, David,  1941- <br/><br/>
Language death / 
David Crystal. 
 - Cambridge, U. K. :  Cambridge University Press,  2000. 
 - x, 198 p. ;  23 cm. 
<br/><br/>Includes bibliographical references (p. 170-181) and indexes. 
<br/><br/><label>ISBN: </label>0521653215  RM76.15 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language obsolescence.