Microseismic method of predicting rock failure in underground mining. Part I, General method / by Leonard Obert and Wilber [sic] Duvall.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1945.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
3797. |
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| Item Description: | "February, 1945." |
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| Physical Description: | 7 pages, 3 unnumbered leaves : illustrations ; 27 cm. |
| Bibliography: | Includes bibliographical references. |