@misc{indiciaefdaa782a94d0,
  title = {Geologic map of the Brimfield area, Massachusetts and Connecticut},
  author = {John D. Peper and Maurice Henry Pease},
  year = {1975},
  doi = {10.3133/ofr7550},
  url = {https://pubs.usgs.gov/publication/ofr7550},
  note = {Source identifier: ofr7550}
}