TY  - BOOK
AU  - WAJNRYB,RUTB
TI  - CLASSROOM OBSERVATION TASKS : ARSOURCE FOR LANGUAGE TEACHERS AND TRAINERS / 
U1  - 421.52 
PY  - 1992///
CY  - [S.N] : 
PB  - CAMBRIDGE ، 
KW  - CLASSROOMS
KW  - LANGUAGES
KW  - TEACHING - LEARING
ER  -