@misc{indiciae04ddeef3160b,
  title = {Surficial geologic map of the Milford quadrangle, New Hampshire},
  author = {Carl Koteff},
  year = {1967},
  doi = {10.3133/ofr67138},
  url = {https://pubs.usgs.gov/publication/ofr67138},
  note = {Source identifier: ofr67138}
}