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020 _a9780070591165
082 _a621.34
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100 _aSHEVGAONKAR R.K
245 _aELECTROMAGNETIC WAVES
260 _aNEW DELHI
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300 _a580
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887 _bSKP-3612
_d05-12-2022
942 _cGEN_BK
999 _c15502
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