@misc{indiciaef3d5e91851fd,
  title = {USGS Mineral Resources Program: A National Perspective},
  author = {S.J. Kropschot},
  year = {1998},
  doi = {10.3133/fs00898},
  url = {https://pubs.usgs.gov/publication/fs00898},
  note = {Source identifier: fs00898}
}