@misc{indiciaedd8a03b63e82,
  title = {Geological maps of Eagle Mountains iron ore deposits, Riverside County, California},
  author = {J. B. Hadley and R. T. Littleton},
  year = {1942},
  doi = {10.3133/ofr4217},
  url = {https://pubs.usgs.gov/publication/ofr4217},
  note = {Source identifier: ofr4217}
}