@misc{indiciaec6f27539f076,
  title = {Bouguer gravity map of the Bath 1° x 2° quadrangle, Maine},
  author = {Robert W. Simpson and W. A. Bohner and Dennis S. Hodge},
  year = {1979},
  doi = {10.3133/ofr79956},
  url = {https://pubs.usgs.gov/publication/ofr79956},
  note = {Source identifier: ofr79956}
}