TY  - RPRT
TI  - Preliminary geologic map of the Simi 7.5' quadrangle, southern California: A digital database
AU  - R.F. Yerkes
AU  - R. H. Campbell
PY  - 1997
DO  - 10.3133/ofr97259
UR  - https://pubs.usgs.gov/publication/ofr97259
ID  - ofr97259
ER  -