@misc{indiciaecf9aaa68171f,
  title = {Mineral resources of the Swansea Wilderness Study Area, La Paz and Mohave counties, Arizona},
  author = {Richard M. Tosdal and Robert G. Eppinger and H. Richard Blank and Daniel H. Knepper and Andrea J. Gallagher and James A. Pitkin and Stephanie L. Jones and George S. Ryan},
  year = {1990},
  doi = {10.3133/b1704c},
  url = {https://pubs.usgs.gov/publication/b1704C},
  note = {Source identifier: b1704C}
}