@misc{indiciae6a53121da39a,
  title = {The copper deposits of the Clifton-Morenci district, Arizona},
  author = {Waldemar Lindgren},
  year = {1905},
  doi = {10.3133/pp43},
  url = {https://pubs.usgs.gov/publication/pp43},
  note = {Source identifier: pp43}
}