TY  - RPRT
TI  - Preliminary photointerpretation map of landslide and other surficial deposits of the Concord 15-minute quadrangle and the Oakland West, Richmond, and part of the San Quentin 7 1/2-minute quadrangles, Contra Costa and Alameda Counties, California
AU  - T. H. Nilsen
PY  - 1973
DO  - 10.3133/mf493
UR  - https://pubs.usgs.gov/publication/mf493
ID  - mf493
ER  -