TY  - BOOK
AU  - Beach,Don M.
AU  - Judy Reinhartz
TI  - Supervision: focus on instruction 
AV  - LB 2806.4 B43 CL135
PY  - 1989///
CY  - New York
PB  - Harper & Row
KW  - School supervision
KW  - United States
N1  - Includes references and indexes
ER  -