@misc{indiciaeb82827153b73,
  title = {Water resources data: Virginia},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1981},
  doi = {10.3133/920},
  url = {https://pubs.usgs.gov/publication/920},
  note = {Source identifier: 920}
}