TY  - RPRT
TI  - Ages of selected intrusive rocks and associated ore deposits in the Colorado mineral belt
AU  - Charles G. Cunningham
AU  - C. W. Naeser
AU  - R. F. Marvin
AU  - R. G. Luedke
AU  - A. R. Wallace
PY  - 1994
DO  - 10.3133/b2109
UR  - https://pubs.usgs.gov/publication/b2109
ID  - b2109
ER  -