@misc{indiciae5a2bdc63d058,
  title = {Major sources of nitrogen input and loss in the upper Snake River basin, Idaho and western Wyoming, 1990},
  author = {Michael Rupert},
  year = {1996},
  doi = {10.3133/wri964008},
  url = {https://pubs.usgs.gov/publication/wri964008},
  note = {Source identifier: wri964008}
}