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| 005 | 20151217143855.0 | ||
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| 020 | _a0070340544 | ||
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_a621.39 _bKEN |
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_aKennedy, George _910920 |
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| 245 | _aElectronic communication systems | ||
| 260 |
_aNew Delhi _bTata Mc Graw - Hill _c1991 |
||
| 300 | _a739p. | ||
| 653 | _aTele communications | ||
| 942 | _cBK | ||
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_c142812 _d142812 |
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