Author: | Hardwick, W. R. |
---|---|
Year: | 1959 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7890 |
Series: | Information circular / U. S. Dept. of the Interior, Bureau of MInes ; |
Report Number: | 7890 |
Subjects: | Block theory (Rock mechanics) |
Copper mines and mining--Arizona--Yavapai County | |
Link: | https://hdl.handle.net/2027/mdp.39015078454512 |