TY  - RPRT
TI  - Radioactive tertiary porphyries in the Central City district, Colorado, and their bearing upon pitchblende deposition
AU  - George Phair
PY  - 1952
DO  - 10.3133/tei247
UR  - https://pubs.usgs.gov/publication/tei247
ID  - tei247
ER  -