@misc{indiciae8d17d6692198,
  title = {Water Resources Data for Colorado, 1968; Part 2: Water quality records},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1969},
  doi = {10.3133/wdrco682},
  url = {https://pubs.usgs.gov/publication/wdrCO682},
  note = {Source identifier: wdrCO682}
}