Roof bolting in Alabama coal mines and iron-ore mines / by H.C. Young.
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| Online Access: |
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| Main Author: | |
| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
[1954]
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| Series: | Information circular (United States. Bureau of Mines) ;
7678. |
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| Item Description: | "March 1954." "Int. - Bu. of Mines, Pgh., Pa."--P. 15. At head of title: Department of Commerce--Bureau of Mines. No.7676-7690 issued bound together. |
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| Physical Description: | ii, 15 pages, 18 unnumbered leaves of plates : illustrations ; 27 cm. |
| Bibliography: | Includes bibliographical references. |
| Action Note: | committed to retain |