@misc{indiciaefcdb39f4438e,
  title = {Graphic and analytical methods for assessment of stream-water quality: Mississippi River in the Minneapolis-St Paul metropolitan area, Minnesota},
  author = {Steven P. Larson and William B. Mann and Timothy Doak Steele and R. H. Susag},
  year = {1976},
  doi = {10.3133/wri7694},
  url = {https://pubs.usgs.gov/publication/wri7694},
  note = {Source identifier: wri7694}
}