TY  - RPRT
TI  - Preliminary map showing potential for copper deposits in the east half of the Tuscon 2 degrees Quadrangle, Arizona
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1974
DO  - 10.3133/ofr74143
UR  - https://pubs.usgs.gov/publication/ofr74143
ID  - ofr74143
ER  -