@misc{indiciae0f13f70e376d,
  title = {Mineral resource assessment of the Ajo and Lukeville 1 degree by 2 degrees quadrangles, Arizona},
  author = {J.A. Peterson and D. P. Cox and Floyd Gray},
  year = {1987},
  doi = {10.3133/mf1834b},
  url = {https://pubs.usgs.gov/publication/mf1834B},
  note = {Source identifier: mf1834B}
}