TY  - BOOK
AU  - Wajnryb, Ruth.
TI  - Classroom Observation Tasks : A Resource Book For
SN  - 521407222
U1  - 418.007 WAJ 1992 C.2 
PY  - 1992///
PB  - Cambridge University Press
N1  - CAMBRIDGE TEACHER TRAINING AND DEVELOPMENT
ER  -