@misc{indiciae741c46197cbd,
  title = {Bouguer gravity map of the Lewiston 1° x 2° quadrangle, Maine, New Hampshire, and Vermont},
  author = {Wallace A. Bothner and R.W. Simpson and R.P. Kucks},
  year = {1979},
  doi = {10.3133/ofr79873},
  url = {https://pubs.usgs.gov/publication/ofr79873},
  note = {Source identifier: ofr79873}
}