@misc{indiciae6619232eccb4,
  title = {Aeromagnetic map of the Marlborough quadrangle and part of the Rockville quadrangle, Tolland, Hartford, and Middlesex Counties, Connecticut},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1973},
  doi = {10.3133/gp849},
  url = {https://pubs.usgs.gov/publication/gp849},
  note = {Source identifier: gp849}
}