@misc{indiciaecdb024e41197,
  title = {Analysis of nutrient and ancillary water-quality data for surface and ground water of the Willamette Basin, Oregon, 1980-90},
  author = {B. A. Bonn and S.R. Hinkle and D.A. Wentz and M.A. Uhrich},
  year = {1995},
  doi = {10.3133/wri954036},
  url = {https://pubs.usgs.gov/publication/wri954036},
  note = {Source identifier: wri954036}
}