Platt, John Talbot, <br/><br/>
The social significance of speech  an introduction to and workbook in sociolinquistics 
John T. Platt and Heidi K. Platt. 
 - Amsterdam  North-Holland Pub. Co  1975. 
 - ix, 194 pages :  illustration, ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography p. 173-191. 
<br/><br/><label>ISBN: </label>0444109722 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociolinguistics