@misc{indiciaea730cc0cdb0e,
  title = {Chester County ground-water atlas, Chester County, Pennsylvania},
  author = {Russell A. Ludlow and Connie A. Loper},
  year = {2004},
  doi = {10.3133/ofr03442},
  url = {https://pubs.usgs.gov/publication/ofr03442},
  note = {Source identifier: ofr03442}
}