000 00269nam a2200121Ia 4500
008 230915s9999 xx 000 0 und d
100 _aSingh, Vanchna
245 0 _aEngineering Physics
260 _aNEW DELHI
260 _bCENGAGE
260 _c2009
300 _a25.8
999 _c161262
_d161262