TY  - BOOK
AU  - Whitney,Norman
TI  - Open doors: student's book 3 
SN  - 0194356086
PY  - 1995///
CY  - Oxford
PB  - Oxford Univ. Press
KW  - English language
KW  - Textbooks for second language learners
KW  - Textbooks for foreign speakers
ER  -