Letter from the Secretary of the Interior transmitting pursuant to law, the second report, July 1 to December 31, 1947, inclusive, on conditions in bituminous coal and lignite mines.
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| Language: | English |
| Published: |
Washington :
[publisher not identified],
1948.
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| Physical Description: | 16 pages : digital, PDF file. |
| Variant Title: |
2d report on conditions in bituminous coal and lignite mines, July 1-Dec. 31, 1947. |
| Format: | Electronic eBook |