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| 005 | 20250326092927.0 | ||
| 008 | 250326b |||||||| |||| 00| 0 eng d | ||
| 050 | _aTK5101.A5.C4 | ||
| 100 | _aClark, G | ||
| 245 |
_aTelecommunications in an information age / _cG. Clark |
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| 260 | _bUS Information Agency | ||
| 300 |
_a88p.: _bPbk |
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| 650 | _aTelecommunication | ||
| 942 | _cBK | ||
| 999 |
_c4483 _d4483 |
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