@misc{indiciaec9027e1f41e3,
  title = {The Ore Knob copper deposit, North Carolina, and other massive sulfide deposits of the Appalachians},
  author = {Arthur R. Kinkel},
  year = {1967},
  doi = {10.3133/pp558},
  url = {https://pubs.usgs.gov/publication/pp558},
  note = {Source identifier: pp558}
}