TY  - BOOK
AU  - Thorne, Sara
TI  - Mastering advanced English language 
SN  - 9781403994837
U1  - 428.2 
PY  - 2008///
CY  - Basingstoke
PB  - Cambridge University Press
KW  - English language - Usage
N1  - 005732; K 140
ER  -