TY - RPRT TI - Preliminary geologic map of the San Francisco South 7.5' quadrangle and part of the Hunters Point 7.5' quadrangle, San Francisco Bay area, California: A digital database AU - M. G. Bonilla PY - 1998 DO - 10.3133/ofr98354 UR - https://pubs.usgs.gov/publication/ofr98354 ID - ofr98354 ER -