Labov, William,  <br/><br/>
Sociolinguistic patterns 
by William Labov. 
 - Philadelphia:   University of Pennsylvania Press,   1973. 
 - xviii, 344 pages:   illustrations;   24 cm. 
<br/><br/>Bibliography: pages 327-336. 
<br/><br/><label>ISBN: </label>0812276574 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociolinguistics.