00334nam a2200133Ia 450000500170000000800410001704100080005808200150006610000150008124500380009626000450013430000090017965000120018820250729165410.0250729s2005    xx            000 0 und d  aeng  a500.7 SHAS  aSharma H L  aSchool Science Education in India  aNew DelhibCommonwealth Publishersc2005  a297p  aScience