@misc{indiciae5157ebd2ff9d,
  title = {Geologic map of the Unionville quadrangle, Pershing County, Nevada},
  author = {R. E. Wallace and D.B. Tatlock and N. J. Silberling and W. P. Irwin},
  year = {1969},
  doi = {10.3133/gq820},
  url = {https://pubs.usgs.gov/publication/gq820},
  note = {Source identifier: gq820}
}