@misc{indiciae552b31f16be2,
  title = {Essentials for optimum use of ground-water resources},
  author = {H. E. Thomas},
  year = {1959},
  doi = {10.3133/ofr59115},
  url = {https://pubs.usgs.gov/publication/ofr59115},
  note = {Source identifier: ofr59115}
}