TY  - BOOK
AU  - Swan,Michael
AU  - Walter,Catherine
TI  - How english works : a grammar practice book ; with answers
SN  - 0194314561 :
U1  - 425 
PY  - 1997///
CY  - Oxford
PB  - Oxford University Press
KW  - English grammar
KW  - English grammar-Practice book
N2  - Language and Literature
ER  -