@misc{indiciae601c4bbe2ca7,
  title = {Folio of geologic and hydrologic maps for land-use planning in the coastal plain of Fairfax County and vicinity, Virginia},
  author = {A.J. Froelich},
  year = {1985},
  doi = {10.3133/i1423},
  url = {https://pubs.usgs.gov/publication/i1423},
  note = {Source identifier: i1423}
}