Investigating obsolescence :  studies in language contraction and death / 
edited by Nancy C. Dorian. 
 - Cambridge [England] :  Cambridge University Press,  1989. 
 - xi, 445 p. :  ill. 
 - Studies in the social and cultural foundations of language ;  7 .
 - Studies in the social and cultural foundations of language ;  no. 7. .
<br/><br/><label>ISBN: </label>052132405X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language obsolescence.