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| 100 | 4 | 0 | _aWalters, Rob |
| 245 | 0 |
_aCTI in action / _cRob Walters...[et. al] |
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| 300 | 4 |
_aXVI, 329 p. \ 25 cm _bil. |
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| 490 | _aSer. Communications in business | ||
| 500 | 4 | _aIncluye índice | |
| 650 |
_a1. Telefonía digital _a2. Comunicación digital _a3. Redes de computadora (Telefonía) |
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| 900 | _a20000418 00:00:00 | ||
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_aGran Bretaña : _bJ. Wiley & Sons _c |
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_a1 _b1 _c1 |
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