@misc{indiciaea1fc71f98728,
  title = {National Water-Quality Assessment Program; The Lower Susquehanna River basin},
  author = {K. J. Breen and R.A. Hainly and S. A. Hoffman},
  year = {1991},
  doi = {10.3133/ofr91168},
  url = {https://pubs.usgs.gov/publication/ofr91168},
  note = {Source identifier: ofr91168}
}