TY  - RPRT
TI  - Geologic map of the Portal Quadrangle and vicinity, Cochise County, Southeast Arizona
AU  - H.D. Drewes
AU  - E. A. Du Bray
AU  - J.S. Pallister
PY  - 1995
DO  - 10.3133/i2450
UR  - https://pubs.usgs.gov/publication/i2450
ID  - i2450
ER  -