TY  - BOOK
AU  - Beach, Don M. and Reinhartz, Judy
TI  - Supervision: : focus on instruction
SN  - 0060405589
U1  - 658.302 
PY  - 1989///
CY  - Cambridge
PB  - ;  Harper &Row,Publishers
KW  - Education
KW  - Supervision
ER  -