@misc{indiciae537650a234ad,
  title = {Spatial analysis of geochemical and geologic information from the Tonopah 1° x 2° quadrangle, Nevada},
  author = {John L. Dwyer and J. Thomas Nash},
  year = {1991},
  doi = {10.3133/b1878},
  url = {https://pubs.usgs.gov/publication/b1878},
  note = {Source identifier: b1878}
}