@misc{indiciae3674aff09ee9,
  title = {Conceptualization and analysis of ground-water flow system in the Coastal Plain of Virginia and adjacent parts of Maryland and North Carolina},
  author = {John F. Harsh and Randell J. Laczniak},
  year = {1990},
  doi = {10.3133/pp1404f},
  url = {https://pubs.usgs.gov/publication/pp1404F},
  note = {Source identifier: pp1404F}
}