@misc{indiciae7862a6325ed2,
  title = {Ground water in the Ordovician rocks near Woodstock, Virginia},
  author = {George M. Hall},
  year = {1928},
  doi = {10.3133/wsp596c},
  url = {https://pubs.usgs.gov/publication/wsp596C},
  note = {Source identifier: wsp596C}
}