@misc{indiciae88c9f3f02bb9,
  title = {Brown Lot No. 10 feldspar quarry, Groton, New Hampshire},
  author = {V.E. Shainin and K.S. Adams},
  year = {1945},
  doi = {10.3133/ofr4581},
  url = {https://pubs.usgs.gov/publication/ofr4581},
  note = {Source identifier: ofr4581}
}