Wardhaugh, Ronald <br/><br/>
An introduction to sociolinguistics 

 - 4a ed. 
 - Hon Kong :  Blackwell Publishing,  2002 
 - 408 p. 
<br/><br/><label>ISBN: </label>0-631-22540-4 
<br/><br/><label>LCCN: </label>010776 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOCIOLINGUISTICA
<br/><br/><label>Dewey Class. No.: </label>801.316