000 | 01415cam a2200337 a 4500 | ||
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999 |
_c974 _d974 |
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001 | 2016048 | ||
003 | Biblioteca de INTEMIN | ||
005 | 20180501014946.0 | ||
008 | 910926s1992 dcuab b f000 0 eng | ||
010 | _a 91037759 | ||
040 |
_aDLC _cDLC _dDLC |
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043 |
_an-us-wv _an-us-pa |
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050 | 0 | 0 |
_aTN23 _b.U43 no. 9413 _aTN288 |
082 | 0 | 0 |
_a622 s _a622/.334/09754 _220 |
086 | 0 | _aI 28.22:9413 | |
245 | 0 | 0 |
_aEffects of horizontal stress related to stream valleys on the stability of coal mine openings / _cby G.M. Molinda ... [et al.]. |
260 |
_aWashington, D.C. : _bU.S. Dept. of the Interior, Bureau of Mines, _c[1992] |
||
300 |
_a26 p. : _bill., maps ; _c28 cm. |
||
490 | 1 |
_aReport of investigations ; _v9413 |
|
504 | _aIncludes bibliographical references (p. 24-25). | ||
650 | 0 |
_aMine roof control. _9691 |
|
650 | 0 |
_aRock bursts. _91079 |
|
650 | 0 |
_aValleys. _93101 |
|
650 | 0 |
_aCoal mines and mining _zWest Virginia. _93102 |
|
650 | 0 |
_aCoal mines and mining _zPennsylvania. _92991 |
|
700 | 1 |
_aMolinda, G. M. _q(Gregory M.) _93103 |
|
830 | 0 |
_aReport of investigations (United States. Bureau of Mines) ; _v9413. _9793 |
|
906 |
_a7 _bcbc _corignew _d1 _eocip _f19 _gy-gencatlg |
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942 |
_2udc _cCR |