@misc{indiciae0504f855f1ad,
  title = {Aeromagnetic map of the Fitchville quadrangle and part of the Norwich quadrangle, New London County, Connecticut},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1973},
  doi = {10.3133/gp860},
  url = {https://pubs.usgs.gov/publication/gp860},
  note = {Source identifier: gp860}
}