TY  - BOOK
AU  - J.G. Wallwork
TI  - Language and people
SN  - 0435109189
U1  - 401.9 W187l 
PY  - 1978///
CY  - London
PB  - Heinemann Educational Books
KW  -  Language and languages.
KW  - Sociolinguistique
KW  -  Langage et langues
ER  -