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Underground coal mine lighting handbook, (in two parts).
| Author: | Lewis, W. H. |
|---|---|
| Year: | 1986 |
| Document Type: | USBI |
| Issuing Agency: | Bureau of Mines, |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 9073 |
| Subjects: | Mine lighting |
| Coal mines and mining | |
| Link: | https://hdl.handle.net/2027/mdp.39015078470328 |
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