Author: | Puariea, Howard F. |
---|---|
Year: | 1932 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
SUDOC: | C 22.11:6626 |
Series: | Information circular / Bureau of Mines ; |
Report Number: | 6626 |
Subjects: | Dredges--Oregon--Portland |
Mining engineering--Oregon--Portland | |
Mines and mineral resources--Oregon--Portland | |
Mineral industries--Oregon--Portland | |
Link: | https://hdl.handle.net/2027/mdp.39015086485557 |