@misc{indiciaed6a61ba67915,
  title = {Water-quality assessment of the Arkansas River basin, southeastern Colorado, 1990-93},
  author = {R.F. Ortiz and M.E. Lewis and M.J. Radell},
  year = {1998},
  doi = {10.3133/wri974111},
  url = {https://pubs.usgs.gov/publication/wri974111},
  note = {Source identifier: wri974111}
}