Preston, Dennis Richard. <br/><br/>
Sociolinguistics and second language acquisition / 
Dennis R. Preston. 
 - Oxford, UK ;  New York, NY, USA :  B. Blackwell,  1989 
 - xv, 326 p. :  ill., maps ;  24 cm. 
 - Language in society  14 .
 - Language in society (Oxford, England) ;  14. .
<br/><br/>Includes bibliogr. references (p. [288]-317) and index. 
<br/><br/><label>ISBN: </label>0631152458 0631152474 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages--Variation.<br/>Second language acquisition.<br/>Language and languages--Study and teaching.
<br/><br/><label>Dewey Class. No.: </label>401/.9