@misc{indiciaec3159fab1775,
  title = {Mineral resources of Wilderness Study Areas, Havasu Region, Arizona},
  author = {R. G. Eppinger and Richard M. Tosdal},
  year = {1990},
  doi = {10.3133/b1704},
  url = {https://pubs.usgs.gov/publication/b1704},
  note = {Source identifier: b1704}
}