@misc{indiciae3e066fbb3430,
  title = {Quality of surface waters of the United States, 1961, Parts 5 and 6, Hudson Bay and upper Mississippi River basins and Missouri River basin},
  author = {S. K. Love},
  year = {1966},
  doi = {10.3133/wsp1883},
  url = {https://pubs.usgs.gov/publication/wsp1883},
  note = {Source identifier: wsp1883}
}