000 00267nam a2200109Ia 4500
008 230427s9999 xx 000 0 und d
082 _a530.4
_bSIN
100 _a SINGH (Devraj)
245 0 _aEngineering Physics
260 _bDhanpat Rai & Sons
_aNEW DELHI
942 _cBK
999 _c9513
_d9513