Year: | 1948 |
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Document Type: | BMRA |
Issuing Agency: | U.S. Bureau of Mines, |
SUDOC: | I 28.23:4339 |
Series: | Report of investigations / Bureau of Mines ; |
Report Number: | 4339 |
Subjects: | Pegmatites--South Dakota--Pennington County |
Spodumene--South Dakota--Pennington County | |
Links: | https://hdl.handle.net/2027/mdp.39015078466961 |
no.4336-4350 1948 |