@misc{indiciaefce3013f09cb,
  title = {Chemical quality of the water in the Tucson basin, Arizona},
  author = {R. L. Laney},
  year = {1972},
  doi = {10.3133/wsp1939d},
  url = {https://pubs.usgs.gov/publication/wsp1939D},
  note = {Source identifier: wsp1939D}
}