TY  - RPRT
TI  - Preliminary geologic map of the Shadow Mountains quadrangle, Los Angeles and San Bernardino Counties, California
AU  - T. W. Dibblee
PY  - 1960
DO  - 10.3133/mf227
UR  - https://pubs.usgs.gov/publication/mf227
ID  - mf227
ER  -