TY  - RPRT
TI  - The Christmas copper mine, Gila County, Arizona
AU  - N. P. Peterson
AU  - R. W. Swanson
PY  - 1946
DO  - 10.3133/ofr4622
UR  - https://pubs.usgs.gov/publication/ofr4622
ID  - ofr4622
ER  -