@misc{indiciaee2e50ed6669c,
  title = {Quality of water in the upper Colorado River basin},
  author = {C. S. Howard},
  year = {2014},
  doi = {10.1029/tr029i003p00375},
  url = {https://pubs.usgs.gov/publication/70215752},
  note = {Source identifier: 70215752}
}