TY  - RPRT
TI  - Uranium in the Cochetopa District, Colorado, in relation to the Oligocene erosion surface
AU  - Jerry Chipman Olson
PY  - 1976
DO  - 10.3133/ofr76222
UR  - https://pubs.usgs.gov/publication/ofr76222
ID  - ofr76222
ER  -