| Author: | Barkley, J. F. |
|---|---|
| Year: | 1938 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines ; |
| SUDOC: | I 28.27:7016 |
| Series: | Information circular / United States. Bureau of Mines ; |
| Report Number: | 7016 |
| Subjects: | Air--Pollution |
| Smoke prevention | |
| Link: | https://hdl.handle.net/2027/mdp.39015077575762 |