@misc{indiciaefa9c817f2066,
  title = {Tritium hydrology of the Mississippi River basin},
  author = {R. L. Michel},
  year = {2004},
  doi = {10.1002/hyp.1403},
  url = {https://pubs.usgs.gov/publication/70027255},
  note = {Source identifier: 70027255}
}