000 00315nam a2200133Ia 4500
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040 _e112718
_aMAIN
041 _aEnglish
082 _a621 G237E
100 _aGaur, R K
245 0 _aEngineering Physics
260 _aNew Delhi
_bDhanpat Rai
_c2005
942 _cBK
999 _c138403
_d138403