TY  - BOOK
AU  - Thomson, A.J.
AU  - Martinet, A.V.
TI  - A Practical English Grammar :  Exercises 1 
SN  - 194421228
U1  - 425 
PY  - 1980///
CY  - Oxford
PB  - Oxford University Press
KW  - English Language
KW  - English Grammar
ER  -