@misc{indiciae6437a1218dac,
  title = {Estimation of background loadings and concentrations of phosphorus for lakes in the Puget Sound region, Washington},
  author = {Robert J. Gilliom},
  year = {1980},
  doi = {10.3133/ofr80328},
  url = {https://pubs.usgs.gov/publication/ofr80328},
  note = {Source identifier: ofr80328}
}