@misc{indiciaeae7f54e2ad0e,
  title = {Elkland-Tioga folio, Pennsylvania},
  author = {Myron L. Fuller and William C. Alden},
  year = {1903},
  doi = {10.3133/gf93},
  url = {https://pubs.usgs.gov/publication/gf93},
  note = {Source identifier: gf93}
}