TY  - RPRT
TI  - Geologic map of the Fontana Quadrangle, San Bernardino and Riverside counties, California
AU  - Douglas M. Morton
PY  - 1978
DO  - 10.3133/ofr7819
UR  - https://pubs.usgs.gov/publication/ofr7819
ID  - ofr7819
ER  -