| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c3670 _d3670 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180530160059.0 | ||
| 008 | 180530b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.24.084 | ||
| 100 |
_aMcDonnell, John P. _97924 |
||
| 245 |
_aProbe hole drilling: high stress detection in coal _cMcDonnell, John P. |
||
| 260 |
_aWashington _bBureau of mines _c1987 |
||
| 650 |
_aMINERIA _965 |
||
| 650 |
_aTIPOS DE PERFORACION _97925 |
||
| 650 |
_aMINAS DE CARBON _95740 |
||
| 650 |
_aTECNOLOGIA MINERA _95207 |
||
| 942 | _cBK | ||