| Author: | Hooker, Verne E. | 
|---|---|
| Additional Authors: | Bickel, David L., | 
| Year: | 1974 | 
| Document Type: | USBI | 
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, | 
| SUDOC: | I 28.27:8618 | 
| Series: | Information circular / United States Department of the Interior, Bureau of Mines ; | 
| Report Number: | 8618 | 
| Subjects: | Mining machinery | 
| Rocks | |
| Gages | |
| Link: | https://hdl.handle.net/2027/mdp.39015078516385 |