00346nam a2200133Ia 450000500170000000800410001704100080005808200150006610000150008124500550009626000380015130000090018965000140019820250729165342.0250729s2004    xx            000 0 und d  aeng  a371.2 KALC  aKalra Alka  aEfficient School Management and role of Principals  aNew DelhibA P H Publishingc2004  a190p  aEducation