@misc{indiciaed7c76f9cf7c9,
  title = {Bouguer gravity map of the Hartford 1° x 2° quadrangle, Connecticut, New York, New Jersey, Massachusetts},
  author = {Wallace A. Bothner and Robert W. Simpson},
  year = {1979},
  doi = {10.3133/ofr791083},
  url = {https://pubs.usgs.gov/publication/ofr791083},
  note = {Source identifier: ofr791083}
}