TY  - BOOK
AU  - Wajnryb
AU  - Wajnryb
TI  - Class room observation tasks:  a resource book for language teachers and trainers    
SN  - 9780521407229
AV  - 418.007 
U1  - 418.007 
PY  - 2008///
CY  - Cambridge university press
PB  - New York
KW  - ENGLISH
ER  -