| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c3877 _d3877 |
||
| 003 | Biblioteca INTEMIN | ||
| 005 | 20180531181754.0 | ||
| 007 | ta | ||
| 008 | 180527b xxu||||| |||| 00| 0 eng d | ||
| 041 | _ainglés | ||
| 080 | _a55 | ||
| 100 |
_aMcCulloch, Charles M. _93547 |
||
| 245 |
_aGeologic investigations of underground coal mining problems _cMcCulloch, Charles M.; Jeran, P. W.; Sullivan, C. D. |
||
| 260 |
_aWashington _bBureau of mines _c1975 |
||
| 300 | _a30 p. | ||
| 440 |
_aRI 8022 _97181 |
||
| 650 |
_aGEOLOGIA _93338 |
||
| 650 |
_aGEOLOGY _92163 |
||
| 653 | _aMINERIA SUBTERRANEA DE CARBON | ||
| 653 | _aUNDERGROUND COAL MINING | ||
| 700 |
_aJeran, P. W. _93906 |
||
| 700 |
_aSullivan, C. D. _98113 |
||
| 942 |
_2udc _cCR |
||