Author: | Needham, A. B. |
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Year: | 1950 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:4693 |
Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 4693 |
Subjects: | Mica--South Dakota--Custer County |
Mine examination--South Dakota--Custer County | |
Link: | https://hdl.handle.net/2027/mdp.39015078504225 |