@misc{indiciaefbeba2c78fc8,
  title = {Aeromagnetic map of parts of the Santa Rosa and San Francisco 1 °by 2° quadrangles, California},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1974},
  doi = {10.3133/ofr7481},
  url = {https://pubs.usgs.gov/publication/ofr7481},
  note = {Source identifier: ofr7481}
}