| 000 | 01196cam a2200301 a 4500 | ||
|---|---|---|---|
| 999 |
_c1214 _d1214 |
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| 001 | 4694158 | ||
| 003 | Biblioteca de INTEMIN | ||
| 005 | 20180506211755.0 | ||
| 008 | 811130s1982 dcua b f000 0 eng | ||
| 010 | _a 81607792 | ||
| 040 |
_aDLC _cDLC _dDLC |
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| 050 | 0 | 0 |
_aTN23 _b.U43 no. 8628 _aTN295 |
| 082 | 0 | 0 |
_a622 s _a622/.334 _219 |
| 086 | 0 | _aI 28.23:8628 | |
| 100 | 1 |
_aChekan, G. J. _q(Gregory J.) _92301 |
|
| 245 | 1 | 0 |
_aInvestigation of longwall gateroad roof support characteristics at Powhatan No. 4 Mine : _binstrumentation plan / _cby G.J. Chekan and D.R. Babich. |
| 260 |
_aWashington : _bU.S. Dept. of the Interior, Bureau of Mines, _c1982. |
||
| 300 |
_a9 p. : _bill. ; _c28 cm. |
||
| 490 | 1 |
_aReport of investigations ; _v8628 |
|
| 504 | _aIncludes bibliographical references. | ||
| 650 | 0 |
_aCoal mines and mining _xSafety measures. _9692 |
|
| 650 | 0 |
_aCaving mining _xSafety measures. _93701 |
|
| 650 | 0 |
_aMine roof control. _9691 |
|
| 650 | 0 |
_aGate roads (Mining) _92411 |
|
| 700 | 1 |
_aBabich, D. R. _q(Daniel R.) _93702 |
|
| 830 | 0 |
_aReport of investigations (United States. Bureau of Mines) ; _v8628. _9793 |
|
| 906 |
_a7 _bcbc _corignew _d1 _encip _f19 _gy-gencatlg |
||
| 942 |
_2udc _cCR |
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