@misc{indiciae3c84ba5dcdb6,
  title = {Geochemistry of ground water},
  author = {John David Hem},
  year = {1950},
  doi = {10.2113/gsecongeo.45.1.72},
  url = {https://pubs.usgs.gov/publication/70215347},
  note = {Source identifier: 70215347}
}