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| 020 | _a83063228 | ||
| 041 | 0 | _aeng | |
| 082 | 0 | 4 | _a384/ T38u/ 08.2.086 |
| 100 | 1 | _aThomas, Ronald R. | |
| 245 | 0 | _aUnderstanding telecomunications | |
| 250 | _aTAB BOOKS | ||
| 264 | _a#¿NOMBRE? | ||
| 300 |
_a243 p. ; _c 23 cm |
||
| 336 | _atxt | ||
| 337 | _an | ||
| 338 | _anc | ||
| 650 | 0 | 4 | _aTELECOMUNICACIONES |
| 999 |
_c250639 _d250639 |
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| 942 | 0 | 0 | _00 |