@misc{indiciaef1ad53042ca2,
  title = {Water resources data for Pennsylvania, water year 1973; Part 2, Water quality records},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1974},
  doi = {10.3133/wdrpa732},
  url = {https://pubs.usgs.gov/publication/wdrPA732},
  note = {Source identifier: wdrPA732}
}