@misc{indiciae19956aa97cd5,
  title = {Aeromagnetic map of part of the Old Lyme Quadrangle, New London and Middlesex counties, Connecticut},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1973},
  doi = {10.3133/gp878},
  url = {https://pubs.usgs.gov/publication/gp878},
  note = {Source identifier: gp878}
}