@misc{indiciae3741c9f3155b,
  title = {National water-quality assessment: Future directions of the U.S. Geological Survey},
  author = {Philip Cohen and William M. Alley and William G. Wilber},
  year = {2007},
  doi = {10.1111/j.1752-1688.1988.tb03032.x},
  url = {https://pubs.usgs.gov/publication/70014296},
  note = {Source identifier: 70014296}
}