TY  - BOOK
AU  - Thomson, A.J.
AU  - Martinet, A.V. jt.au.
TI  - Practical english grammar
SN  - 0195620535
U1  - 425 
PY  - 2006///
CY  - New Delhi
PB  - Oxford University Press
KW  - English grammar
KW  - English language-Grammar
ER  -