00429nam a2200157Ia 450000500170000000800460001703700120006304000210007504100130009608400190010910000200012824500380014826000470018630000090023349000290024220250508151733.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDL bengcFEDL  aeng2eng  a507, DASqFEDL  aDass L Ghansham 0aTeaching of physics and chemistry  aLondon, UKbOxford University Press c1955  a168p  aTeaching in India series