TY  - RPRT
TI  - White Spar mica mine, Custer County, South Dakota
AU  - L. R. Page
AU  - J.J. Norton
PY  - 1943
DO  - 10.3133/ofr4378
UR  - https://pubs.usgs.gov/publication/ofr4378
ID  - ofr4378
ER  -