@misc{indiciae3b6bb05b5cbc,
  title = {Preliminary construction materials map, Woodbury quadrangle, Litchfield and New Haven Counties, Connecticut},
  author = {Fred Pessl},
  year = {1966},
  doi = {10.3133/ofr6697},
  url = {https://pubs.usgs.gov/publication/ofr6697},
  note = {Source identifier: ofr6697}
}