Wardhaugh. Ronald. <br/><br/>
An Introduction to Sociolinguistics / 
Ronald Wardhaugh. & Janet M. Fuller. 
 - 8th ed. 
 - New Yrok :  Wiley,  c2021. 
 - xvi, 456p. :  ill. ;  25cm. 
<br/><br/> including Index. 
<br/><br/><label>ISBN: </label>9781119473428 (pbk.) 
<br/><br/><label>Dewey Class. No.: </label>306.44  / WAR