@misc{indiciae05bc479e5270,
  title = {Aeromagnetic map of the Litchfield quadrangle, Litchfield County, Connecticut},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1973},
  doi = {10.3133/gp843},
  url = {https://pubs.usgs.gov/publication/gp843},
  note = {Source identifier: gp843}
}