@misc{indiciae1006ff4d3b97,
  title = {Tritium in ground water in Mississippi, 1989-90},
  author = {L. J. Slack and W. T. Oakley},
  year = {1991},
  doi = {10.3133/ofr91177},
  url = {https://pubs.usgs.gov/publication/ofr91177},
  note = {Source identifier: ofr91177}
}