@misc{indiciaeac4d193c9917,
  title = {Geologic map of the Portuguese Mountain Quadrangle, Nye County, Nevada},
  author = {W. D. Quinlivan and C.L. Rogers and H.W. Dodge},
  year = {1974},
  doi = {10.3133/i804},
  url = {https://pubs.usgs.gov/publication/i804},
  note = {Source identifier: i804}
}