Geologic factors influencing the gas content of coalbeds in southwestern Pennsylvania / by James P. Ulery.
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Main Author: | |
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Format: | Government Document Book |
Language: | English |
Published: |
[Washington, DC] :
U.S. Dep. of the Interior, Bureau of Mines,
1988.
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Series: | Report of investigations (United States. Bureau of Mines) ;
9195. |
Subjects: |