@misc{indiciaef400ffdb9512,
  title = {Trends in nutrient inflows to the Gulf of Mexico from streams draining the conterminous United States, 1972-93},
  author = {David E. Dunn},
  year = {1996},
  doi = {10.3133/wri964113},
  url = {https://pubs.usgs.gov/publication/wri964113},
  note = {Source identifier: wri964113}
}