TY  - BOOK
AU  - Swan, Michael  
AU  - Michael Swan
TI  - Practical English usage : 
SN  - 0194421465
U1  - 428.24/ Sw241p/ 2002 
PY  - 2002///
CY  - New York
PB  - Oxford University
KW  -  English Language
N1  - Includes Index
ER  -