TY  - RPRT
TI  - Map showing preliminary base- and precious-metal resource appraisal, Arizona
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1978
DO  - 10.3133/ofr78860
UR  - https://pubs.usgs.gov/publication/ofr78860
ID  - ofr78860
ER  -