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Technique of surveying diamond-drill holes with the Wright Radiolite Borehole-Surveying Instrument
| Author: | Townsend, James W. |
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| Additional Authors: | King, William H. |
| Year: | 1947 |
| Document Type: | BMRA |
| Issuing Agency: | United States Bureau of Mines, |
| SUDOC: | I 28.23:4061 |
| Series: | Report of investigations / Bureau of Mines ; |
| Report Number: | 4061 |
| Subject: | Borehole mining |
| Link: | https://hdl.handle.net/2027/mdp.39015078497289 |
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