@misc{indiciae5eee16041022,
  title = {Zinc, lead, and barite deposits and occurrences in Paleozoic rocks, east-central United States},
  author = {Sandra H. Clark and Cathy L. Neeley},
  year = {1983},
  doi = {10.3133/ofr83187},
  url = {https://pubs.usgs.gov/publication/ofr83187},
  note = {Source identifier: ofr83187}
}