@misc{indiciaed1bea36fafa9,
  title = {Variable impacts of contemporary versus legacy agricultural phosphorus on US river water quality},
  author = {Sarah M. Stackpoole and Edward G. Stets and Lori A. Sprague},
  year = {2019},
  doi = {10.1073/pnas.1903226116},
  url = {https://pubs.usgs.gov/publication/70208186},
  note = {Source identifier: 70208186}
}