TY  - RPRT
TI  - Geologic map of the San Bernardino South Quadrangle, San Bernardino and Riverside counties, California
AU  - Douglas M. Morton
PY  - 1978
DO  - 10.3133/ofr7820
UR  - https://pubs.usgs.gov/publication/ofr7820
ID  - ofr7820
ER  -