@misc{indiciae9f89bf025017,
  title = {Preliminary geologic map of the Welches Canyon quadrangle, Nevada},
  author = {J. G. Evans},
  year = {1972},
  doi = {10.3133/mf326},
  url = {https://pubs.usgs.gov/publication/mf326},
  note = {Source identifier: mf326}
}