Bayley,Robert, <br/><br/>
Sociolinguistic Variation :  
By Robert Bayley and Ceil Lucas .  
 - New Delhi  Cambridge University Press  2007 
 - xvi;405p. 
<br/><br/><label>ISBN: </label>978-1-316-60436-6 
<br/><br/><label>Dewey Class. No.: </label>PogY  / P7