@misc{indiciae908b2954ec4e,
  title = {Aeromagnetic map of the Rangeley quadrangle and part of the Kennebago Lake quadrangle, Franklin and Oxford Counties, Maine},
  author = {G. R. Boynton and F. P. Gilbert},
  year = {1964},
  doi = {10.3133/gp480},
  url = {https://pubs.usgs.gov/publication/gp480},
  note = {Source identifier: gp480}
}