@misc{indiciae8ca27cca46f8,
  title = {Summary appraisals of the nation's ground-water resources – Mid-Atlantic region},
  author = {Allen Sinnott and Elliot Morse Cushing},
  year = {1978},
  doi = {10.3133/pp813i},
  url = {https://pubs.usgs.gov/publication/pp813I},
  note = {Source identifier: pp813I}
}