@misc{indiciaea8a84c001741,
  title = {Fletcher mica mine, Groton, New Hampshire},
  author = {A.H. McNair and C.B. Burnett and J.B. Headley},
  year = {1943},
  doi = {10.3133/ofr4363},
  url = {https://pubs.usgs.gov/publication/ofr4363},
  note = {Source identifier: ofr4363}
}