@misc{indiciae32b37b40f312,
  title = {Geologic and aeromagnetic map of northern Maine},
  author = {A. J. Boucot},
  year = {1960},
  doi = {10.3133/ofr6016},
  url = {https://pubs.usgs.gov/publication/ofr6016},
  note = {Source identifier: ofr6016}
}