@misc{indiciae94dbb4a7d19d,
  title = {Bedrock reconnaissance map of the Mattawamkeag quadrangle, Maine},
  author = {David Marcel Larrabee},
  year = {1963},
  doi = {10.3133/ofr6376},
  url = {https://pubs.usgs.gov/publication/ofr6376},
  note = {Source identifier: ofr6376}
}