@misc{indiciae9989d57c5d9c,
  title = {Bedrock reconnaissance map of the Springfield quadrangle, Maine},
  author = {David Marcel Larrabee},
  year = {1963},
  doi = {10.3133/ofr6380},
  url = {https://pubs.usgs.gov/publication/ofr6380},
  note = {Source identifier: ofr6380}
}