TY  - BOOK
AU  - Swan, Michael.
TI  - Practical English usage: international student's edition 
SN  - 9780195679892
U1  - 428.219 SWA 
PY  - 2007///
CY  - New Delhi, Oxford
PB  - Oxford University Press
KW  - English language
KW  - Usage
KW  - Grammar
KW  - Textbooks for foreign speakers
N1  - Includes index
ER  -