@misc{indiciaea81e6408eb42,
  title = {Water Resources Data for Colorado, 1967; Part 2: Water quality records},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1968},
  doi = {10.3133/wdrco672},
  url = {https://pubs.usgs.gov/publication/wdrCO672},
  note = {Source identifier: wdrCO672}
}