@misc{indiciae6f10614fbfd6,
  title = {Map showing unconsolidated materials, Keene quadrangle, New Hampshire-Vermont},
  author = {W. H. Langer and C. J. Recny},
  year = {1978},
  doi = {10.3133/mf1012},
  url = {https://pubs.usgs.gov/publication/mf1012},
  note = {Source identifier: mf1012}
}