| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c4170 _d4170 |
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| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180607162953.0 | ||
| 008 | 180607b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.807 | ||
| 100 |
_aMatta, Joseph E. _98445 |
||
| 245 |
_aEffect of location and type of water sprays for respirable dust suppression on a continuous mining machine (BM-TPR 96) _cMatta, Joseph E. |
||
| 260 |
_aWashington _bBureau of mines _c1976 |
||
| 650 |
_aCONTROL DE POLVO EN LA MINA _98026 |
||
| 650 |
_aVENTILACION EN LA MINA _98313 |
||
| 650 |
_aPOLVO EN LA MINA _98357 |
||
| 942 | _cBK | ||