@misc{indiciaeb63b80518269,
  title = {Water resources data for Pennsylvania; water year 1977; Volume 2, Susquehanna and Potomac River basins},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1978},
  doi = {10.3133/wdrpa772},
  url = {https://pubs.usgs.gov/publication/wdrPA772},
  note = {Source identifier: wdrPA772}
}