@misc{indiciaeb357802b7f87,
  title = {Trends in nitrogen and phosphorus concentrations in southern New England streams, 1974-92},
  author = {Marc James Zimmerman},
  year = {1997},
  doi = {10.3133/fs00197},
  url = {https://pubs.usgs.gov/publication/fs00197},
  note = {Source identifier: fs00197}
}