State regulations pertaining to the use of internal combustion engines underground /
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| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines :
1981.
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| Series: | Information circular (United States. Bureau of Mines) ;
8845. |
| Subjects: |
| Physical Description: | ii, 76 pages ; 27 cm. |
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