000 00325nam a2200133Ia 4500
008 230908s9999 xx 000 0 und d
020 _a9788189983338
100 _aSUNDAR, PREM
245 0 _aTEACHING OF CHEMISTRY
260 _bKHEL SAHITYA KENDRA, New DELHI
_c2016
300 _a328
650 _aChemistry
942 _cBK
999 _c217790
_d217790