| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c3637 _d3637 |
||
| 003 | Biblioteca INTEMIN | ||
| 005 | 20180530121644.0 | ||
| 007 | ta | ||
| 008 | 180527b xxu||||| |||| 00| 0 eng d | ||
| 041 | _ainglés | ||
| 080 | _a622 | ||
| 100 |
_aSkinner, Eugene H. _93547 |
||
| 245 |
_aTunnel boring technology: disk cutter experiments in metamorphic and igneous rocks _cSkinner, Eugene H.; Conway, John P.; Waddell, Galen G. |
||
| 260 |
_aWashington _bBureau of mines _c1974 |
||
| 300 | _a87 p. | ||
| 440 |
_aRI 7962 _97869 |
||
| 650 |
_aMINERIA _93338 |
||
| 650 |
_aMINING _92163 |
||
| 653 | _aMECANICA DE ROCAS | ||
| 653 | _aDEFORMACION DE LA ROCA | ||
| 653 | _aROCK MECHANICS | ||
| 653 | _aROCK DEFORMATION | ||
| 700 |
_aConway, John P. _97857 |
||
| 700 |
_aWaddell, Galen G. _97870 |
||
| 942 |
_2udc _cCR |
||