TY  - RPRT
TI  - Geology of Precambrian rocks, Central City district, Colorado
AU  - P.K. Sims
AU  - D. J. Gable
PY  - 1964
DO  - 10.3133/pp474c
UR  - https://pubs.usgs.gov/publication/pp474C
ID  - pp474C
ER  -