00688nam a2200193 a 4500 20240221174810.0 081020s19uu xx 00 eng d CLRC CLRC CLRC LB 2806.4 B43 CL135 Beach, Don M. 48418 Supervision : focus on instruction / Don M. Beach, Judy Reinhartz. New York : Harper & Row, c1989. xix, 294 pages; illustrations Includes references and indexes. School supervision United States. 48419 Judy Reinhartz 48420 lcc BK 31421 31421 0 0 lcc 0 0 CLLRC CLLRC CIR 2019-05-20 LB 2806.4 B43 CL135 2019-05-20 00:00:00 2019-05-20 BK