| Author: | Duvall, Wilbur I. | 
|---|---|
| Additional Authors: | Aggson, James R., | 
| Year: | 1980 | 
| Document Type: | BMRA | 
| Issuing Agency: | Dept. of the Interior, Bureau of Mines, | 
| SUDOC: | I 28.23:8414 | 
| Series: | Report of investigations / United States. Bureau of Mines ; | 
| Report Number: | 8414 | 
| Subjects: | Boring | 
| Least squares | |
| Rock mechanics--Statistical methods | |
| Link: | https://hdl.handle.net/2027/mdp.39015078466201 |