@misc{indiciaec05a44561152,
  title = {Preliminary geologic map of the Coastal Plain and Triassic Lowland of Fairfax County, Virginia},
  author = {Arthur E. Nelson},
  year = {1976},
  doi = {10.3133/ofr76312},
  url = {https://pubs.usgs.gov/publication/ofr76312},
  note = {Source identifier: ofr76312}
}