@misc{indiciaee80825e2ec37,
  title = {Mineral resources of the Swansea Wilderness Study Area, La Paz and Mohave counties, Arizona},
  author = {R. M. Tosdal and R. G. Eppinger and H. R. Blank and D. H. Knepper and A.J. Gallagher and J. A. Pitkin and S.L. Jones and G. S. Ryan},
  year = {1990},
  doi = {10.3133/ofr90521},
  url = {https://pubs.usgs.gov/publication/ofr90521},
  note = {Source identifier: ofr90521}
}