000 00266nam a2200121Ia 4500
008 211126s9999 xx 000 0 und d
082 _a540
100 _aPRASANTA RATH
245 0 _aENGINEERING CHEMISTRY
260 _bCENGAGE
365 _b349/-
942 _cBTECH
999 _c172777
_d172777