@misc{indiciae836225a41e6b,
  title = {Vertical gradients in water chemistry in the central High Plains aquifer, southwestern Kansas and Oklahoma panhandle, 1999},
  author = {Peter B. McMahon},
  year = {2001},
  doi = {10.3133/wri014028},
  url = {https://pubs.usgs.gov/publication/wri014028},
  note = {Source identifier: wri014028}
}