TY  - BOOK
AU  - Duff Prtricia A.
TI  - Case study research in applied linguistics
T2  - Second language acquistion research : Theoretical and methodological issues
SN  - 9780805823592 (pbk)
U1  - P:f, P8 
PY  - 2008///
CY  - New York
PB  - Lawrence Erlbaum Associat U.S.A    
KW  - LINGUISTICS
ER  -