@misc{indiciaebd6266d98366,
  title = {Grade-tonnage data for detachment-fault related polymetallic deposits},
  author = {K. R. Long},
  year = {1993},
  doi = {10.3133/ofr93228},
  url = {https://pubs.usgs.gov/publication/ofr93228},
  note = {Source identifier: ofr93228}
}