TY  - RPRT
TI  - Reconnaissance geologic map of the west side of the Sierrita Mountains, Palo Alto Ranch Quadrangle, Pima County, Arizona
AU  - Harald Drewes
AU  - J.R. Cooper
PY  - 1973
DO  - 10.3133/mf538
UR  - https://pubs.usgs.gov/publication/mf538
ID  - mf538
ER  -