Wardhaugh, Ronald <br/><br/>
An Introduction to Sociolinguistics / 
Ronald Wardhaugh, Janet M. Fuller. 
 - 7th ed. 
 - New York :  John Wiley & Sons,  c2015. 
 - xii, 427 p. ;  24 cm. 
<br/><br/>Include index 
<br/><br/><label>ISBN: </label>9781118732298 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociolinguistics
<br/><br/><label>Dewey Class. No.: </label>306.44  / WAI 2015