@misc{indiciae3d1361eb8279,
  title = {Quality of surface waters of the United States, 1949 : Parts 7 -14},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1953},
  doi = {10.3133/wsp1163},
  url = {https://pubs.usgs.gov/publication/wsp1163},
  note = {Source identifier: wsp1163}
}