@misc{indiciae42bebe395b0e,
  title = {Availability and chemical characteristics of ground water in central La Plata County, Colorado},
  author = {R. E. Brogden and T.F. Giles},
  year = {1976},
  doi = {10.3133/wri7669},
  url = {https://pubs.usgs.gov/publication/wri7669},
  note = {Source identifier: wri7669}
}