@misc{indiciae5b2a58b2e9c8,
  title = {Surficial geologic map of parts of the Rochester and Somersworth quadrangles, Strafford County, New Hampshire},
  author = {Carl Koteff},
  year = {1991},
  doi = {10.3133/i2265},
  url = {https://pubs.usgs.gov/publication/i2265},
  note = {Source identifier: i2265}
}