@misc{indiciae752ce31263b4,
  title = {Ground water in the United States, a summary of ground-water conditions and resources, utilization of water from wells and springs, methods of scientific investigation, and literature relating to the subject},
  author = {O. E. Meinzer},
  year = {1939},
  doi = {10.3133/wsp836d},
  url = {https://pubs.usgs.gov/publication/wsp836D},
  note = {Source identifier: wsp836D}
}