@misc{indiciae86234dae6d42,
  title = {Water-table, surface-drainage, and engineering soils map of the Frederica area, Delaware},
  author = {Christian F. Davis and Durward H. Boggess and O. J. Coskery},
  year = {1965},
  doi = {10.3133/ha140},
  url = {https://pubs.usgs.gov/publication/ha140},
  note = {Source identifier: ha140}
}