00306nam a2200121Ia 450000500170000000800410001704100080005808200150006610000170008124500360009826000410013430000090017520260720174622.0260720s2006    xx            000 0 und d  aeng  a371.2 KOCS  aKochhar, S K  aSecondary school administration  aNew DelhibSterling Publishersc2006  a468p