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Sand-and-gravel safety contest of 1930
| Author: | Adams, William W. |
|---|---|
| Year: | 1931 |
| Document Type: | BMRA |
| Issuing Agency: | United States Bureau of Mines, |
| SUDOC: | C 22.12:3133 |
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 3133 |
| Subjects: | Industrial safety |
| Sand and gravel mines and mining--Accidents | |
| Sand and gravel industry--Accidents | |
| Link: | https://hdl.handle.net/2027/mdp.39015077567819 |
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