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008 | 991125s1988 mx ad fr 000 0 spa d | ||
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082 | 0 | 4 |
_a384 _bPET 1988 |
110 | 1 | _aPetróleos Mexicanos | |
245 | 1 | 4 | _aLas telecomunicaciones en Petróleos Mexicanos |
264 |
_aMéxico _bPetróleos Mexicanos _c1988 |
||
300 | _a150 p. | ||
650 | 4 | _aTelecomunicaciones | |
905 | _aLibros | ||
950 | _c20000814 | ||
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950 | _c20060109 | ||
950 | _c20091119 | ||
950 | _c20111027 | ||
950 | _c20230914 | ||
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