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| 008 | 220217s9999||||xx |||||||||||||| ||und|| | ||
| 082 | _a621.382 KRI | ||
| 100 | _aKrishna Kumar, D N | ||
| 245 | 0 | _aTelecommunication and switching | |
| 260 |
_aSanguin publication _bBangalore _c2006 |
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| 300 | _b240 | ||
| 650 | _aTELECOMMUNICATION | ||
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_c175548 _d175548 |
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