TY  - RPRT
TI  - Geology and pegmatites of part of the Fourmile area, Custer County, South Dakota
AU  - A.J. Lang
AU  - J. A. Redden
PY  - 1952
DO  - 10.3133/tei155
UR  - https://pubs.usgs.gov/publication/tei155
ID  - tei155
ER  -