00555nam a2200157Ia 4500008004000000020001800040082001800058100004800076245005900124260003300183300001300216690001400229906001100243999001700254952012600271210210b1980   xxu||||| |||| 00| 0 eng d  a0 205 06812 X  a371.2012 BLUE  aBLUMBERG (Arthur) and GREENFIELD (William).  aEffective principal perspectives on school leadership.  aBoston.bAllyn & Baconc1980  aviii,280  aEducation  a036797  c87307d87307  001040708EducationaALbALcEducationd2021-02-17g0.00l0o371.2012 BLUEp036797r2021-02-17 00:00:00w2021-02-17yBK