TY  - BOOK
AU  - Biddle, Bruce J. 
AU  - Ellena William J. 
TI  - Contemporary research on teacher effectiveness / 
U1  - 371.33 
PY  - 1964///
CY  - New York
PB  - Holt, Rinehart and Winston
KW  - Teachers -- Rating of
N1  - Include bibliographical references and index.
ER  -