@misc{indiciae650faa832c4b,
  title = {Water-table, surface-drainage, and engineering soils map of the Dover quadrangle, Delaware},
  author = {John K. Adams and Christian F. Davis and Durward H. Boggess},
  year = {1964},
  doi = {10.3133/ha139},
  url = {https://pubs.usgs.gov/publication/ha139},
  note = {Source identifier: ha139}
}