@misc{indiciae613d4ca32238,
  title = {Quality of surface waters of the United States, 1962, Parts 5 and 6, Hudson Bay and upper Mississippi River basins, and Missouri River basins},
  author = {S. K. Love},
  year = {1964},
  doi = {10.3133/wsp1943},
  url = {https://pubs.usgs.gov/publication/wsp1943},
  note = {Source identifier: wsp1943}
}