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| 005 | 20240103170058.0 | ||
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| 035 | _aHEM0002872 | ||
| 041 | _aSPA | ||
| 245 | 0 | 0 | _aBureau of mines report of investigations. |
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_aIngeniería Civil _bIngeniería Industrial _cIngeniería Química |
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_c222380 _d222380 |
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