TY  - BOOK
AU  - Swan,Michael
AU  - Walter,Catherine
TI  - How English works : : grammar practice book / 
SN  - 9780194314565   
PY  - 2008///
CY  - Oxford
PB  - Oxford University Press, 
KW  - English language
KW  - Grammar
KW  - 1950
KW  - Textbooks for foreign speakers
N1  - Includes index
ER  -