@misc{indiciaed50d2ce3a1e0,
  title = {Geology of the Charlesmont-Heath Area (with special reference to pyrite and copper deposits)},
  author = {Alonso Wallace Quinn},
  year = {1945},
  doi = {10.3133/ofr4527},
  url = {https://pubs.usgs.gov/publication/ofr4527},
  note = {Source identifier: ofr4527}
}