@misc{indiciae9dc2abf229f8,
  title = {Digital data used to relate nutrient inputs to water quality in the Chesapeake Bay watershed},
  author = {John W. Brakebill and Stephen D. Preston},
  year = {1999},
  doi = {10.3133/ofr9960},
  url = {https://pubs.usgs.gov/publication/ofr9960},
  note = {Source identifier: ofr9960}
}