@misc{indiciae8bd36f047303,
  title = {Operations at river stations, 1900, Part IV},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1901},
  doi = {10.3133/wsp50},
  url = {https://pubs.usgs.gov/publication/wsp50},
  note = {Source identifier: wsp50}
}