TY  - RPRT
TI  - Preliminary geologic map of the Fontana 7.5' quadrangle, Riverside and San Bernardino Counties, California
AU  - Douglas M. Morton
AU  - Kelly R. Bovard
PY  - 2003
DO  - 10.3133/ofr03418
UR  - https://pubs.usgs.gov/publication/ofr03418
ID  - ofr03418
ER  -