@misc{indiciaefec5f06c5dc7,
  title = {Water Resources Data for Colorado, 1966; Part 2. Water Quality Records},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1967},
  doi = {10.3133/wdrco662},
  url = {https://pubs.usgs.gov/publication/wdrCO662},
  note = {Source identifier: wdrCO662}
}