TY  - BOOK
AU  - Adamson, H. D. 
TI  - Variation theory and second language acquisition
SN  - 0878402152
PY  - 1988///
CY  - Washington
PB  - Georgetown University Press
KW  - Language & languages
KW  - Variation
KW  - Second language acquisition
KW  - Psycholinguistics
ER  -