TY  - GEN
AU  - Doff, Adrian.
AU  - Jones, Christopher.
TI  - Language in use: self-study workbook
SN  - 0521555485 (upper-intermediate)
AV  - PE1128 
PY  - 2004///
CY  - Cambridge
PB  - Cambridge University Press
KW  - English language
KW  - Study and teaching
ER  -