@misc{indiciaef5df26145338,
  title = {U.S. Geological Survey workshop on nonfuel mineral-resource appraisal of wilderness and CUSMAP areas},
  author = {Daniel R. Shawe},
  year = {1981},
  doi = {10.3133/cir845},
  url = {https://pubs.usgs.gov/publication/cir845},
  note = {Source identifier: cir845}
}