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| 003 | BDDhADUST | ||
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| 020 | _a9814126357 | ||
| 040 |
_aBDDhADUST _bBDDhADUST _cBDDhADUST |
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_a621.385 _bBED _222 |
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| 100 | _aJohn Bellamy | ||
| 245 | _aDigital Telephone / | ||
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| 260 |
_aNew York _bJhon Wiley _c2000 |
||
| 300 | _axvi, 639 | ||
| 340 | _aPAPER | ||
| 365 |
_b160 _cBDT |
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| 942 |
_2DDC _cBK |
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_c30273 _d30273 |
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