@misc{indiciae557c28a35e92,
  title = {U.S. Geological Survey nutrient preservation experiment: Nutrient concentration data for surface-, ground-, and municipal-supply water samples and quality-assurance samples},
  author = {Charles J. Patton and Earl P. Truitt},
  year = {1995},
  doi = {10.3133/ofr95141},
  url = {https://pubs.usgs.gov/publication/ofr95141},
  note = {Source identifier: ofr95141}
}