TY  - BOOK
AU  - Swan,Michael
TI  - Practical english usage
SN  - 9780194420969
PY  - 2005///
CY  - New York
PB  - Oxford University Press
KW  - English language
KW  - Usage
KW  - Grammar
KW  - Textbooks for foreign speakers
N1  - Include index
ER  -