@misc{indiciae4cb27c331907,
  title = {Aeromagnetic survey and geologic reconnaissance of part of Piscataquis County, Maine},
  author = {J. R. Balsley and E.P. Kaiser},
  year = {1954},
  doi = {10.3133/gp116},
  url = {https://pubs.usgs.gov/publication/gp116},
  note = {Source identifier: gp116}
}