TY  - BOOK
AU  - Doff, Adrian
AU  - Jones, Christopher
TI  - Language in use:  uper- intermediate 
SN  - 8175962240
U1  - 420.7 
PY  - 2004///
CY  - New Delhi
PB  - Cambridge university press
KW  - English method
KW  - English language
N1  - Includes glossary
ER  -