Notes on precautions to be taken when drilling oil or gas wells through workable coal beds or through mine workings / by C.A. Herbert.
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Format: | Government Document Book |
Language: | English |
Published: |
Washington, D.C. :
U.S. Dept. of Commerce, Bureau of Mines,
1929.
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Series: | Information circular (United States. Bureau of Mines) ;
6195. |
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