@misc{indiciaea73c2ae32425,
  title = {Mineral resources of the Gibraltar Mountain and Planet Peak Wilderness Study Areas, La Paz County, Arizona},
  author = {R. G. Eppinger and J.A. Peterson and H. R. Blank and K.E. Livo and D. H. Knepper and J. A. Pitkin and J.E. Spencer and S. J. Reynolds and M. J. Grubensky and T.J. Kreidle and D.C. Scott},
  year = {1990},
  doi = {10.3133/ofr90512},
  url = {https://pubs.usgs.gov/publication/ofr90512},
  note = {Source identifier: ofr90512}
}