TY  - RPRT
TI  - Economic geology of the Central City district, Gilpin County, Colorado
AU  - P.K. Sims
AU  - Avery A. Drake
AU  - E. W. Tooker
PY  - 1963
DO  - 10.3133/pp359
UR  - https://pubs.usgs.gov/publication/pp359
ID  - pp359
ER  -