@misc{indiciaed3e5953ac686,
  title = {Water-table, surface-drainage, and engineering soils map of the Middletown area, Delaware},
  author = {Durward H. Boggess and John K. Adams},
  year = {1964},
  doi = {10.3133/ha82},
  url = {https://pubs.usgs.gov/publication/ha82},
  note = {Source identifier: ha82}
}