@misc{indiciaeeebdee0522e6,
  title = {Analytical results and sample locality map of heavy-mineral-concentrate samples from the Jacumba/In-Ko-Pah Mountains Wilderness Study Area (CDCA 368), Imperial County, California},
  author = {D.E. Detra and J.E. Kilburn},
  year = {1985},
  doi = {10.3133/ofr85272},
  url = {https://pubs.usgs.gov/publication/ofr85272},
  note = {Source identifier: ofr85272}
}