TY  - BOOK
AU  - Swan,Michael
TI  - Practical English usage: New international student's edition 
SN  - 0194420965
PY  - 2005///
CY  - Oxford
PB  - Oxford University Press
KW  - English language
KW  - Usage
KW  - Textbooks for foreign speakers
N1  - On the cover : Easier, faster reference
ER  -