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| LEADER |
00000cam a22000002a 4500 |
| 008 |
011206s1988 mx 000 0 spa d |
| 020 |
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|a 9686164057
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| 020 |
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|a 9686164243
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| 035 |
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|a (Sirsi) i9789686164244
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| 040 |
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|a UV#
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| 043 |
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|a n-mx---
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| 050 |
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4 |
|a HD9574.M6
|b P45
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| 110 |
1 |
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|a PEMEX
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| 245 |
1 |
3 |
|a El petróleo /
|c PEMEX ; rev. y redactada por Hugo Covantes.
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| 260 |
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|a México :
|b PEMEX;
|c 1988.
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| 300 |
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|a 176 p ;
|b il., fotos, col. ;
|c 23 cm.
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| 500 |
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|a 50 Aniversario ; Conmemorativa
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| 650 |
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4 |
|a Industria del Petróleo
|z México.
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| 700 |
1 |
2 |
|a Covantes, Hugo.
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| 902 |
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|a DBUV
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| 596 |
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|a 23
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| 942 |
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|c LIBRO
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| 999 |
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|c 118028
|d 118028
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