@misc{indiciaec8508d9b3522,
  title = {Geology and ore deposits of the Koko Weef Mountain Area, San Bernardino County, California},
  author = {Arthur Richards and A.L. Brokaw},
  year = {1944},
  doi = {10.3133/ofr441},
  url = {https://pubs.usgs.gov/publication/ofr441},
  note = {Source identifier: ofr441}
}