TY  - RPRT
TI  - Preliminary geologic map of the Perris 7.5' quadrangle, Riverside County, California
AU  - Douglas M. Morton
AU  - Kelly R. Bovard
AU  - Rachel M. Alvarez
PY  - 2003
DO  - 10.3133/ofr03270
UR  - https://pubs.usgs.gov/publication/ofr03270
ID  - ofr03270
ER  -