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| 008 | 250425s9999 xx 000 0 und d | ||
| 041 | _aeng | ||
| 082 | _a621.38 | ||
| 100 | _aFREEMAN, ROGER L | ||
| 245 | 0 | _aTELECOMMUNICATION TRANSMISSION HANDBOOK | |
| 250 | _aS.E. | ||
| 260 | _aS.L. | ||
| 260 |
_aSin Pais _bJOWI _c1981 |
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| 500 | _aCLASIFICACION: 621.38 | ||
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