@misc{indiciaee2a1f977f935,
  title = {Water resources data for Pennsylvania water year 1981, Volume 1. Delaware River Basin},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1982},
  doi = {10.3133/wdrpa811},
  url = {https://pubs.usgs.gov/publication/wdrPA811},
  note = {Source identifier: wdrPA811}
}