@misc{indiciaec94ffa1b4022,
  title = {Quality of surface waters of the United States, 1943, with a summary of analyses of streams in Colorado River, Pecos River, and Rio Grande Basins, 1925 to 1943},
  author = {Charles S. Howard and S. K. Love},
  year = {1945},
  doi = {10.3133/wsp970},
  url = {https://pubs.usgs.gov/publication/wsp970},
  note = {Source identifier: wsp970}
}