TY  - BOOK
AU  - Swan, Michael
AU  - Walter, Catherine
TI  - How English works: a grammar practice book
SN  - 019431457X
U1  - 428.24 SWA 23
PY  - 1997///
CY  - Oxford
PB  - Oxford University Press
KW  - English language
KW  - grammar
N1  - Includes index
ER  -