@misc{indiciaed1e12f5944c6,
  title = {Geochemistry and origin of the Bald Knob manganese deposit, North Carolina},
  author = {M.J.K. Flohr},
  year = {1992},
  doi = {10.2113/gsecongeo.87.8.2023},
  url = {https://pubs.usgs.gov/publication/70017083},
  note = {Source identifier: 70017083}
}