| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c2006 _d2006 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180515172349.0 | ||
| 008 | 180515b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.33 | ||
| 100 |
_aMatson, Thomas K. _95296 |
||
| 245 |
_aThe reserve base of coal for underground mining in the Western United States _cMatson, Thomas K. |
||
| 260 |
_aWashington _bBureau of mines _c1975 |
||
| 650 |
_aMINERIA _965 |
||
| 650 |
_aCARBON _9494 |
||
| 942 | _cBK | ||