@misc{indiciaea9e2a597f226,
  title = {Bouguer gravity map of the Sherbrooke 1° x 2° quadrangle, Maine, New Hampshire, and Quebec},
  author = {Wallace A. Bothner and R.W. Simpson and R.P. Kucks},
  year = {1979},
  doi = {10.3133/ofr79874},
  url = {https://pubs.usgs.gov/publication/ofr79874},
  note = {Source identifier: ofr79874}
}