@misc{indiciae225351f8d63b,
  title = {Geochemical, aeromagnetic, and generalized geologic maps showing distribution and abundance of gold and silver, Brooks Spring Quadrangle, Humboldt County, Nevada},
  author = {R. L. Erickson and S.P. Marsh},
  year = {1974},
  doi = {10.3133/mf563},
  url = {https://pubs.usgs.gov/publication/mf563},
  note = {Source identifier: mf563}
}