Labov, William <br/><br/>
The social  strafication of English in New York city.  xii, 485 p.  
William Labov 
 -  2nd edition. 
 -  Cambridge university press  2006 
<br/><br/> Includes bibliographical references (p. 462-472) and index. 
<br/><br/><label>ISBN: </label>0521528054