@misc{indiciaea95f841902df,
  title = {Geochemistry of ground water in the Gulf Coast Aquifer systems, south-central United States},
  author = {R. A. Pettijohn},
  year = {1996},
  doi = {10.3133/wri964107},
  url = {https://pubs.usgs.gov/publication/wri964107},
  note = {Source identifier: wri964107}
}