@misc{indiciae3c9ecfac7104,
  title = {Ground-water investigations in the United States},
  author = {A.N. Sayre},
  year = {1948},
  doi = {10.2113/gsecongeo.43.7.547},
  url = {https://pubs.usgs.gov/publication/70215629},
  note = {Source identifier: 70215629}
}