@misc{indiciae5a35d982ca36,
  title = {Preface; Water quality of large U.S. rivers; results from the U.S. Geological Survey's National Stream Quality Accounting Network},
  author = {Robert M. Hirsch and Richard P. Hooper},
  year = {2001},
  doi = {10.1002/hyp.204},
  url = {https://pubs.usgs.gov/publication/70180722},
  note = {Source identifier: 70180722}
}