| 000 | 01437cam a2200325 a 4500 | ||
|---|---|---|---|
| 999 |
_c979 _d979 |
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| 001 | 3434595 | ||
| 003 | Biblioteca de INTEMIN | ||
| 005 | 20180501020135.0 | ||
| 008 | 911114s1992 dcua b f000 0 eng | ||
| 010 | _a 91043726 | ||
| 040 |
_aDLC _cDLC _dDLC |
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| 043 | _an-us-pa | ||
| 050 | 0 | 0 |
_aTN23 _b.U43 no. 9403 _aTN288 |
| 082 | 0 | 0 |
_a622 s _a622/.334 _220 |
| 086 | 0 | _aI 28.22:9403 | |
| 100 | 1 |
_aBauer, Eric R. _92207 |
|
| 245 | 1 | 0 |
_aInfluence of subjacent gob on longwall development mining in the Upper Kittanning Coalbed of south-central Pennsylvania / _cby E.R. Bauer, G.J. Chekan, and G.P. Sames. |
| 260 |
_aWashington, D.C. : _bBureau of Mines, U.S. Dept. of the Interior, _c1992. |
||
| 300 |
_a13 p. : _bill. ; _c27 cm. |
||
| 490 | 1 |
_aReport of investigations ; _v9403 |
|
| 504 | _aIncludes bibliographical references (p. 13). | ||
| 650 | 0 |
_aGround control (Mining) _zPennsylvania _zEbensburg Region. _93120 |
|
| 650 | 0 |
_aLongwall mining _zPennsylvania _zEbensburg Region. _92422 |
|
| 650 | 0 |
_aCoal mine waste _zPennsylvania _zEbensburg Region. _93121 |
|
| 700 | 1 |
_aChekan, G. J. _q(Gregory J.) _92301 |
|
| 700 | 1 |
_aSames, Gary P. _9689 |
|
| 830 | 0 |
_aReport of investigations (United States. Bureau of Mines ; _v9403. _9793 |
|
| 906 |
_a7 _bcbc _corignew _d1 _eocip _f19 _gy-gencatlg |
||
| 942 |
_2udc _cCR |
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