@misc{indiciaeaf7b35af46fe,
  title = {Quality of nutrient data from streams and ground water sampled during 1993-95; National Water-Quality Assessment Program},
  author = {David K. Mueller},
  year = {1998},
  doi = {10.3133/ofr98276},
  url = {https://pubs.usgs.gov/publication/ofr98276},
  note = {Source identifier: ofr98276}
}