@misc{indiciaef1ab93e24d72,
  title = {Keys No. 6 mine, Orange, New Hampshire},
  author = {E.N. Cameron},
  year = {1943},
  doi = {10.3133/ofr4327},
  url = {https://pubs.usgs.gov/publication/ofr4327},
  note = {Source identifier: ofr4327}
}