| Author: | Thoenen, J. R. |
|---|---|
| Year: | 1933 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| Series: | Information circular ; |
| Report Number: | 6689 |
| Subjects: | Gravel |
| Sand | |
| Sand and gravel industry | |
| Link: | https://hdl.handle.net/2027/mdp.39015074128250 |