@misc{indiciae177d3d715def,
  title = {Quality of surface waters of the United States, 1958, Parts 5 \& 6, Hudson Bay and upper Mississippi River basins and Missouri River Basin},
  author = {S. K. Love},
  year = {1962},
  doi = {10.3133/wsp1572},
  url = {https://pubs.usgs.gov/publication/wsp1572},
  note = {Source identifier: wsp1572}
}