Wardhaugh, Ronald. <br/><br/>
An introduction to sociolinguistics / 
Ronald Wardhaugh and Janet M. Fuller. 
 - 7th ed.  
 - New York :   Wiley,  2015.  
 - xii, 427 pages :  illustrations ;  25 cm. 
 - Blackwell textbooks in linguistics,  no. 4 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781118732298 
<br/><br/><label>LCCN: </label>2014030512 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociolinguistics.
<br/><br/><label>Dewey Class. No.: </label>306.44