TY  - RPRT
TI  - Thorium and rare earth minerals in the Powderhorn district, Gunnison County, Colorado
AU  - Jerry C. Olson
AU  - Stewart R. Wallace
PY  - 1954
DO  - 10.3133/tei353
UR  - https://pubs.usgs.gov/publication/tei353
ID  - tei353
ER  -