@misc{indiciae30162a21a0ba,
  title = {Preliminary geologic map of the Luning SW Quadrangle, Mineral County, Nevada},
  author = {E. B. Ekren and F.M. Byers},
  year = {1978},
  doi = {10.3133/ofr78917},
  url = {https://pubs.usgs.gov/publication/ofr78917},
  note = {Source identifier: ofr78917}
}