TY  - BOOK
AU  - Conference on variation in second language acquisition (Michigan)
ED  - Conference on variation in second language acquisition (Michigan)
TI  - Papers ed by Susanb Gass etc
T2  - Multingual matters; 49
U1  - P:(S:4)p1,N97, M9 
PY  - 1989///
CY  - Clevedon
PB  - Muilitingual Matters      
KW  - LINGUISTICS
ER  -