@misc{indiciae67274b675506,
  title = {Preliminary geologic map of Nevada},
  author = {John H. Stewart and J. E. Carlson},
  year = {1974},
  doi = {10.3133/mf609},
  url = {https://pubs.usgs.gov/publication/mf609},
  note = {Source identifier: mf609}
}