Author: | Cooper, W. E. |
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Additional Authors: | Holub, Robert F. |
Year: | 1990 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:9257 |
Series: | Information circular / Bureau of Mines ; |
Report Number: | 9257 |
Subjects: | Radon--Isotopes--Measurement |
Mine gases--Colorado--Twilight Mine--Measurement | |
Link: | https://hdl.handle.net/2027/mdp.39015078458257 |