TY  - RPRT
TI  - Geologic maps of Crystal graphite mine, Beaverhead County, Montana
AU  - Frank C. Armstrong
AU  - Roy P. Full
PY  - 1950
DO  - 10.3133/ofr5026
UR  - https://pubs.usgs.gov/publication/ofr5026
ID  - ofr5026
ER  -