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| 005 | 20250425161205.0 | ||
| 008 | 250425s9999 xx 000 0 und d | ||
| 020 | _a0070908974 | ||
| 041 | _aspa | ||
| 082 | _a550.9 | ||
| 110 | _aTHE OPEN UNIVERSITY | ||
| 245 | 0 | _aHISTORIA DE LA TIERRA: 1 | |
| 250 | _a1A ED. | ||
| 260 | _aMEXICO | ||
| 260 |
_aMéxico _bMCGRAW HILL _c1974 |
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| 300 | _a34 | ||
| 650 | _aTIERRA-HISTORIA | ||
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