TY  - BOOK
AU  - SWAN,Michael
TI  - Practical English Usage: international student's edition 
SN  - 0194313484
PY  - 1996///
CY  - Oxford
PB  - Oxford University Press
KW  - English language
KW  - Grammar
KW  - Textbooks for foreigners
N1  - Includes index
ER  -