TY  - RPRT
TI  - Spatial digital database for the geology of the San Pedro River Basin in Cochise, Gila, Graham, Pima, and Pinal Counties, Arizona
AU  - Karen S. Bolm
PY  - 2002
DO  - 10.3133/ofr02393
UR  - https://pubs.usgs.gov/publication/ofr02393
ID  - ofr02393
ER  -