@misc{indiciae8849229b4e3a,
  title = {Hydrology of the Dismal Swamp, Virginia-North Carolina},
  author = {William Francis Lichtler and Patrick Neil Walker},
  year = {1974},
  doi = {10.3133/ofr7439},
  url = {https://pubs.usgs.gov/publication/ofr7439},
  note = {Source identifier: ofr7439}
}