| 000 | 01346pam a2200313 a 4500 | ||
|---|---|---|---|
| 999 |
_c724 _d724 |
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| 001 | 3818053 | ||
| 003 | Biblioteca del INTEMIN | ||
| 005 | 20180426152832.0 | ||
| 008 | 850401s1985 pauab b f000 0 eng | ||
| 010 | _a 85600080 | ||
| 040 |
_aDLC _cDLC _dDLC |
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| 043 | _an-us-pa | ||
| 050 | 0 | 0 |
_aTN23 _b.U43 no. 8987 _aTN805.P4 |
| 082 | 0 | 0 |
_a622 s _a622/.334 _219 |
| 086 | 0 | _aI 28.23:8987 | |
| 100 | 1 |
_aKertis, Carla A. _92379 |
|
| 245 | 1 | 0 |
_aReducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes / _cby Carla A. Kertis. |
| 260 |
_aPittsburgh, Pa. : _bU.S. Dept. of the Interior, Bureau of Mines, _c1985. |
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| 300 |
_a23 p. : _bill., maps ; _c28 cm. |
||
| 490 | 1 |
_aReport of investigations ; _v8987 |
|
| 504 | _aBibliography: p. 21-23. | ||
| 650 | 0 |
_aCoal _xGeology _zPennsylvania _zIndiana County. _92380 |
|
| 650 | 0 |
_aCoal _xGeology _zPennsylvania _zArmstrong County. _92381 |
|
| 650 | 0 |
_aRiver channels. _92382 |
|
| 650 | 0 |
_aCoal mines and mining _zPennsylvania _zIndiana County _xSafety measures. _92383 |
|
| 650 | 0 |
_aCoal mines and mining _zPennsylvania _zArmstrong County _xSafety measures. _92384 |
|
| 830 | 0 |
_aReport of investigations (United States. Bureau of Mines) ; _v8987. _9793 |
|
| 906 |
_a7 _bcbc _corignew _d1 _encip _f19 _gy-gencatlg |
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| 942 |
_2udc _cCR |
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