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020 _a9788184116472
040 _cJKRC
082 _223
_a621.3
_bKRI.B
100 _aKrishna, Bal
_926850
245 0 _aWaves, vibrations and electromagnetic theory
250 _a1st
260 _aNew Dehli
260 _bSonali Publications
260 _c2021
300 _a221 p.
365 _b712.50
942 _c1
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999 _c426732
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