@misc{indiciaea77ac37c4b8b,
  title = {Nulsen barite mine, Cartersville district, Bartow County, Georgia},
  author = {T. L. Kesler and I. G. Sohn},
  year = {1946},
  doi = {10.3133/ofr4620},
  url = {https://pubs.usgs.gov/publication/ofr4620},
  note = {Source identifier: ofr4620}
}