TY  - GEN
AU  - Obee, Bob
AU  - Evans, Virginia,
TI  - Upstream
SN  - 1843255308 (Student's book)
PY  - 2003///-2004
CY  - Newbury
PB  - Express Publishing
KW  - English language
KW  - Study and teaching (Secondary)
KW  - Foreign speakers
KW  - Textbooks for foreign speakers
ER  -