@misc{indiciae3d34f6c9ea8d,
  title = {Bedrock geologic map of the Lisbon quadrangle, and parts of the Sugar Hill and East Haverhill quadrangles, Grafton County, New Hampshire},
  author = {Douglas W. Rankin},
  year = {2018},
  doi = {10.3133/ofr20181016},
  url = {https://pubs.usgs.gov/publication/ofr20181016},
  note = {Source identifier: ofr20181016}
}