TY  - RPRT
TI  - Areal geology of the Placerville Quadrangle, Colorado
AU  - Alfred Lerner Bush
AU  - C. S. Bromfield
AU  - Charles Thomas Pierson
PY  - 1956
DO  - 10.3133/tei547
UR  - https://pubs.usgs.gov/publication/tei547
ID  - tei547
ER  -