@misc{indiciaee661730c88b5,
  title = {Study of nonpoint source nutrient loading in the Patuxent River basin, Maryland},
  author = {S. D. Preston},
  year = {1997},
  doi = {10.3133/wri964273},
  url = {https://pubs.usgs.gov/publication/wri964273},
  note = {Source identifier: wri964273}
}