@misc{indiciae7d5d80f1d2c4,
  title = {USGS research on mineral resources, 1991; program and abstracts},
  author = {Elizabeth E. Good and John F. Slack and Rama K. Kotra},
  year = {1991},
  doi = {10.3133/cir1062},
  url = {https://pubs.usgs.gov/publication/cir1062},
  note = {Source identifier: cir1062}
}