@misc{indiciae797a00b50f5b,
  title = {Ground-water resources of northern Berks County, Pennsylvania},
  author = {Charles R. Wood and David B. MacLachlan},
  year = {1977},
  doi = {10.3133/ofr77407},
  url = {https://pubs.usgs.gov/publication/ofr77407},
  note = {Source identifier: ofr77407}
}