@misc{indiciaef063199774ab,
  title = {Alameda County, California selected references to the geologic environment},
  author = {J.H. Freeberg},
  year = {1990},
  doi = {10.3133/ofr90630},
  url = {https://pubs.usgs.gov/publication/ofr90630},
  note = {Source identifier: ofr90630}
}