| 000 | 01076pam a2200277 a 4500 | ||
|---|---|---|---|
| 999 |
_c4529 _d4529 |
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| 001 | 1438968 | ||
| 003 | Biblioteca de INTEMIN | ||
| 005 | 20180710171743.0 | ||
| 008 | 840629s1984 pauab b f000 0 eng | ||
| 010 | _a 84600214 | ||
| 040 |
_aDLC _cDLC _dDLC |
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| 050 | 0 | 0 |
_aTN23 _b.U43 no. 8916 _aTN279 |
| 082 | 0 | 0 |
_a622 s _a622/.334 _219 |
| 086 | 0 | _aI 28.23:8916. | |
| 100 | 1 |
_aStachura, Virgil J. _91493 |
|
| 245 | 1 | 0 |
_aDelayed blasting tests to improve highwall stability : _ba progress report / _cby Virgil J. Stachura and Larry R. Fletcher. |
| 260 |
_aPittsburgh, Pa. : _bU.S. Dept. of the Interior, Bureau of Mines, _c1984. |
||
| 300 |
_a24 p. : _bill., maps ; _c28 cm. |
||
| 490 | 1 |
_aBureau of Mines report of investigations ; _v8916 |
|
| 504 | _aBibliography: p. 21. | ||
| 650 | 0 |
_aBlasting. _91494 |
|
| 650 | 0 |
_aCoal mines and mining _xSafety measures. _9692 |
|
| 700 | 1 |
_aFletcher, Larry R. _97921 |
|
| 830 | 0 |
_aReport of investigations (United States. Bureau of Mines) ; _v8916. _9793 |
|
| 906 |
_a7 _bcbc _corignew _d1 _encip _f19 _gy-gencatlg |
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| 942 |
_2udc _cCR |
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