@misc{indiciae733cdd6015ce,
  title = {Phosphorus concentrations, loads, and yields in the Illinois River Basin, Arkansas and Oklahoma, 1997-2001},
  author = {Barbara E. Pickup and William J. Andrews and Brian E. Haggard and W. Reed Green},
  year = {2003},
  doi = {10.3133/wri034168},
  url = {https://pubs.usgs.gov/publication/wri034168},
  note = {Source identifier: wri034168}
}