@misc{indiciaeff686df64fa8,
  title = {Aeromagnetic map of the Black Buttes/Ventana area, California},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1982},
  doi = {10.3133/ofr82947},
  url = {https://pubs.usgs.gov/publication/ofr82947},
  note = {Source identifier: ofr82947}
}