@misc{indiciae67e0890da174,
  title = {Surficial geologic map of proposed route 3 from Lowell, Massachusetts, to the New Hampshire State line},
  author = {Joseph H. Hartshorn},
  year = {1955},
  doi = {10.3133/ofr5562},
  url = {https://pubs.usgs.gov/publication/ofr5562},
  note = {Source identifier: ofr5562}
}