@misc{indiciaed2a94e86fc6f,
  title = {Talc mines in Vermont},
  author = {M.P. Billings and A.H. Chidester and A.E.J. Engel},
  year = {1945},
  doi = {10.3133/ofr4530},
  url = {https://pubs.usgs.gov/publication/ofr4530},
  note = {Source identifier: ofr4530}
}