TY  - RPRT
TI  - Preliminary geologic map of the Piru 7.5' quadrangle, southern California: A digital database
AU  - R. F. Yerkes
AU  - Russell H. Campbell
PY  - 1995
DO  - 10.3133/ofr95801
UR  - https://pubs.usgs.gov/publication/ofr95801
ID  - ofr95801
ER  -