Bell, Roger T. <br/><br/>
Sociolinguistics :  Goals, approaches, and problems / 
Roger T. Bell. 
 - London :  B. T. Batsford,  1976. 
 - 251 p. :  ill. ;  23 cm. 
<br/><br/> Includes indexes. 
<br/><br/>Bibliogr.: p. 229-243. 
<br/><br/><label>ISBN: </label>0713432187 0713432195 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociolinguistics