@misc{indiciae230171c68ab8,
  title = {Reference sources on ground-water hydrology},
  author = {R.C. Vorhis},
  year = {1957},
  doi = {10.3133/ofr57113},
  url = {https://pubs.usgs.gov/publication/ofr57113},
  note = {Source identifier: ofr57113}
}