TY  - BOOK
AU  - Collins, Cobuild
TI  - Work on your grammar B 2 - Upper Intermediate: Over 200 exercises to improve your English grammar 
U1  - 428.5 
PY  - 2013///
CY  - London
PB  - Central Institute of Indian Languages
KW  - English
KW  - language lessons
KW  - exercises
N1  - 006567; K 160
ER  -