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| 999 |
_c2785 _d2785 |
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| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180522174209.0 | ||
| 008 | 180522b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622 | ||
| 100 |
_aCouillard, D.T. _96480 |
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| 245 |
_aVideo supplemented task training at the United States Steel Corp. Minntac Mine, Mt. Iron, MN _cCouillard, D.T. |
||
| 260 |
_aWashignton _bBureau of mines _c1985 |
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| 650 |
_aMINERIA _965 |
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| 650 |
_aACERO _94182 |
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| 942 | _cBK | ||