Determining the in-place support of mine roof with rock bolts, White Pine Copper Mine, Michigan / by Robert H. Merrill, Thomas A. Morgan, and C.J. Stehlik.
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| Main Author: | |
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| Other Authors: | , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Dept. of the Interior, Bureau of Mines,
1961.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
5746. |
| Subjects: |
| Physical Description: | 28 pages : illustrations ; 27 cm. |
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| Bibliography: | Bibliography: page 28. |