@misc{indiciaef77bd49d1b1c,
  title = {Transport of nitrate in the Mississippi river in July-August 1999},
  author = {Richard H. Coupe and Donald A. Goolsby and William A. Battaglin and John Karl Bohlke and Peter B. McMahon and Carol Kendall},
  year = {2013},
  url = {https://pubs.usgs.gov/publication/70155850},
  note = {Source identifier: 70155850}
}