@misc{indiciaec7dfc08dd95d,
  title = {Geology and mineral deposits of the Boleo copper district, Baja California, Mexico},
  author = {I.F. Wilson and V.S. Rocha},
  year = {1955},
  doi = {10.3133/pp273},
  url = {https://pubs.usgs.gov/publication/pp273},
  note = {Source identifier: pp273}
}