00342nam a2200133Ia 450000500170000000800410001702000180005808200210007610000210009724500330011826000360015130000080018765000130019520250408135122.0231217s9999    xx            000 0 und d  a9788178882246  a372.35  TRI;1  R  aTripathi, Salil. 0aTeaching of physical science  c2004bDominant Publ.aNew Delhi  a281  aphysical