Studies of roof movement in coal mines. 3, Gibson Mine of the Hillman Coal & Coke Co. / by E.R. Maize, Edward Thomas, and H.P. Greenwald.
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| Other title: | Gibson Mine of the Hillman Coal & Coke Co. |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1940.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
3506. |
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