TY  - BOOK
AU  - Swan,Michael
AU  - Walter,Catherine
TI  - How English works: a grammar practice book with answers
SN  - 019431456I
AV  - PE 1128 S926H
PY  - 1998///
CY  - Oxford
PB  - Oxford Univ. Press
KW  - ENGLISH LANGUAGE
KW  - TEXTBOOKS FOR FOREIGN SPEAKERS
ER  -