TY  - BOOK
AU  - Preston,Dennis Richard
TI  - Sociolinguistics and second language acquisition
SN  - 0631152458 :
U1  - 401.9 
PY  - 1989///
CY  - Oxford
PB  - B. Blackwell
KW  - Language and languages
KW  - Variation
KW  - Second language acquisition
KW  - Study and teaching
N1  - Includes bibliographical references and index
ER  -