@misc{indiciae200fb9d2e4de,
  title = {Estimates of long-term mean-annual nutrient loads considered for use in SPARROW models of the Midcontinental region of Canada and the United States, 2002 base year},
  author = {David A. Saad and Glenn A. Benoy and Dale M. Robertson},
  year = {2018},
  doi = {10.3133/sir20185051},
  url = {https://pubs.usgs.gov/publication/sir20185051},
  note = {Source identifier: sir20185051}
}