@misc{indiciae431cebea753e,
  title = {Aeromagnetic map of the Middletown quadrangle, Middlesex, Hartford, and New Haven Counties, Connecticut},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1973},
  doi = {10.3133/gp856},
  url = {https://pubs.usgs.gov/publication/gp856},
  note = {Source identifier: gp856}
}