@misc{indiciae80a194404845,
  title = {Susceptibility of coastal plain aquifers to contamination, Fairfax County, Virginia; a computer composite map},
  author = {Richard H. Johnston and J. Nicholas Van Driel},
  year = {1978},
  doi = {10.3133/ofr78265},
  url = {https://pubs.usgs.gov/publication/ofr78265},
  note = {Source identifier: ofr78265}
}