TY  - BOOK
ED  - Gass,Susan 
TI  - Variation in second language Acquisition:psycholinguistics issues
T2  - Multilingual matters; no.50
SN  - 1853590274
U1  - 401.9 
PY  - 1989///
CY  - Philadelphia
PB  - Multilingual matters 
KW  - Second language aquision
KW  - Psycholinguistics
ER  -