Effect of a surface borehole on longwall gob degasification (Pocahontas No. 3 Coalbed) [electronic resource] / by T.D. Moore and M.G. Zabetakis.
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
[Pittsburgh, Pa.?] :
U.S. Dept. of the Interior, Bureau of Mines,
[1972]
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| Series: | Report of investigations (United States. Bureau of Mines) ;
7657. |
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Internet
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| Call Number: |
HE 20.7131:7657
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| HE 20.7131:7657 | Available |