| Author: | Jackson, Charles Freeman, |
|---|---|
| Year: | 1937 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:6973 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6973 |
| Subject: | Mineral industries--United States--Statistics |
| Link: | https://hdl.handle.net/2027/mdp.39015074128359 |