@misc{indiciaee0f5ed2c75a4,
  title = {Water-table, surface-drainage, and engineering soils map of the Frankford area, Delaware},
  author = {John K. Adams and Durward H. Boggess and O. J. Coskery},
  year = {1964},
  doi = {10.3133/ha119},
  url = {https://pubs.usgs.gov/publication/ha119},
  note = {Source identifier: ha119}
}