AU  - Dean, Micheal 
AU  - Anna Sikorzynska
TI  - Opportunities intermediate: Language powerbook
SN  - 058242142X
U1  - 428.24 DEA 
PY  - 2003///
CY  - Spain
PB  - Lonngman
KW  - Standard English usage
KW  - İngilizce'nin kullanımı
KW  - English language --Textbooks for foreign speakers
ER  -