@misc{indiciaeaad8cc5e59b3,
  title = {Geologic map of the northwest quarter of the Bullfrog 15-minute Quadrangle, Nye County, Nevada},
  author = {Florian Maldonado},
  year = {1990},
  doi = {10.3133/i1985},
  url = {https://pubs.usgs.gov/publication/i1985},
  note = {Source identifier: i1985}
}