TY  - BOOK
AU  - Gallagher, James J., Nuthall, Graham A. and Rosenshine, Barak
TI  - Classroom observation
U1  - 371.1024 
PY  - 1970///
CY  - Usa
PB  - ; Rand Mcnally And Company
KW  - Classroom Management
KW  - Education
ER  -