TY  - RPRT
TI  - A preliminary determination of the age of some uranium ores of the Colorado Plateaus by the lead-uranium method
AU  - Lorin Rollins Stieff
AU  - T. W. Stern
AU  - R.G. Milkey
PY  - 1953
DO  - 10.3133/cir271
UR  - https://pubs.usgs.gov/publication/cir271
ID  - cir271
ER  -