| 000 | nam a22 7a 4500 | ||
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| 999 |
_c3518 _d3518 |
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| 003 | Bilbioteca-INTEMIN | ||
| 005 | 20180529162446.0 | ||
| 008 | 180529b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.807 | ||
| 100 |
_aCecala, Andrew B. _91794 |
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| 245 |
_aReducing dust exposure of workers during bag stacking in enclosed vehicles _cCecala, Andrew B. |
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| 260 |
_aWashington _bBureau of mines _c1987 |
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| 650 |
_aMINERIA _965 |
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| 650 |
_aCONTROL DE POLVO EN GENERAL _97651 |
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| 942 | _cBK | ||