@misc{indiciae9bb90d00f3b3,
  title = {Ground-water development in the high plains of Colorado, with a section on chemical quality of the ground water},
  author = {Arnold J. Boettcher and Robert Brennan},
  year = {1966},
  doi = {10.3133/wsp1819i},
  url = {https://pubs.usgs.gov/publication/wsp1819I},
  note = {Source identifier: wsp1819I}
}