@misc{indiciaec4d96b8eb052,
  title = {Quality of surface waters of the United States, 1960, Parts 5 and 6, Hudson Bay and Upper Mississippi River basins, and Missouri River basin},
  author = {S. K. Love},
  year = {1966},
  doi = {10.3133/wsp1743},
  url = {https://pubs.usgs.gov/publication/wsp1743},
  note = {Source identifier: wsp1743}
}