@misc{indiciaeb353007e49c6,
  title = {Tritium analyses of shallow ground water in Mississippi, April 1989},
  author = {L. J. Slack and W. T. Oakley},
  year = {1989},
  doi = {10.3133/ofr89418},
  url = {https://pubs.usgs.gov/publication/ofr89418},
  note = {Source identifier: ofr89418}
}