| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c4041 _d4041 |
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| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180605150050.0 | ||
| 008 | 180605b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.87 | ||
| 245 |
_aThe use of a handheld programmable calculator to determine the explosibility of mine atmospheres and gas mixtures _cSmith, G.E. |
||
| 260 |
_aWashington _bDepartment of interior _c1977 |
||
| 650 |
_aCONTROL DE LAS CONDICIONES AMBIENTALES _95809 |
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| 650 |
_aRIESGOS DE EXPLOSION _98316 |
||
| 942 | _cBK | ||