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040 _cLibrary 2
041 _aENG
082 _a621
_bGUP
100 _aGupta, S L
245 0 _aEngineering Physics
260 _aNew Delhi
_bDhanpat Rai Publication
_c2013
300 _aMiscp.
_bY
700 _aGupta, S L
942 _2ddc
_cBK