| 000 | 00795nam a22002297a 4500 | ||
|---|---|---|---|
| 001 | 15593 | ||
| 008 | 190110s1979 xxu||||| |||| 00| 0 eng d | ||
| 041 | _aeng | ||
| 100 |
_927482 _aPuglio, D.G. |
||
| 245 | _aGeology, mining, and methane content of the freeport and Kittanning coalbeds in Indiana and sorrounding Counties, PA | ||
| 260 |
_aWashington, D.C. _bU.S. Bureau of Mines _c1979 |
||
| 300 |
_a35 p. _btbls., diagrs., mapas |
||
| 490 | _aEdición especial | ||
| 650 |
_9227 _aCARBON |
||
| 650 |
_9722 _aGEOLOGIA |
||
| 650 |
_9173 _aMINERIA |
||
| 651 |
_973 _aESTADOS UNIDOS |
||
| 651 |
_913216 _aPENNSYLVANIA |
||
| 773 |
_010626 _910626 _dWashington, D.C. _gv.8406, 1979 _o10626 _tEstados Unidos. Bureau of Mines. Report of Investigations |
||
| 910 |
_aRNUÑEZ _b38868 |
||
| 942 |
_2z _cARTI |
||
| 999 |
_c15593 _d15593 |
||