| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c3451 _d3451 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180529110419.0 | ||
| 008 | 180529b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.807 | ||
| 100 |
_aOrganiscak, John A. _92221 |
||
| 245 |
_aDust controls to improving quality of longwall intake air _cOrganiscak, John A. |
||
| 260 |
_aWashington _bBureau of mines _c1986 |
||
| 650 |
_aMINERIA _965 |
||
| 650 |
_aCONTROL DE POLVO EN LAS MINAS _97616 |
||
| 942 | _cBK | ||