@misc{indiciae4e520945d227,
  title = {Report on the properties of the Amergosa Molybdenum and Copper Corporation, Pima County, Arizona},
  author = {Charles A. Anderson and D.H. Kupfer},
  year = {1956},
  doi = {10.3133/ofr4550},
  url = {https://pubs.usgs.gov/publication/ofr4550},
  note = {Source identifier: ofr4550}
}