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| 020 | _a81-85273-09-X | ||
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_aDUET_Lib _bDUET_Lib _cDUET_Lib |
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| 082 |
_223rd . _a621.385/ BIP |
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| 100 |
_aBiswas , Nripendra _95116 |
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| 245 |
_aPrinciples of Telephony / _cNripendra Biswas |
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| 250 | _a-- | ||
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_aNew Delhi : _bUBS pub , _cc1988 . |
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| 300 |
_avii , 138 p . : _bill . ; _g21cm . |
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| 500 | _aIncludes Index . | ||
| 650 |
_a1 . Telephony . _95117 |
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| 650 |
_a2 . EEE . _93007 |
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_2ddc _cBK |
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_c6846 _d6846 |
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