| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c2856 _d2856 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180522233323.0 | ||
| 008 | 180522b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.82 | ||
| 100 |
_aPomroy, William H. _93301 |
||
| 245 |
_aImprovinciaed stench fire warning for underground mines _cPomroy, William H. |
||
| 260 |
_aWashington _bBureau of mines _c1985 |
||
| 650 |
_aMINERIA _965 |
||
| 650 | 0 |
_95816 _aRIESGO DE INCENDIOS |
|
| 942 | _cBK | ||