@misc{indiciaeb98e5a75df37,
  title = {Contributions to the hydrology of the United States, 1921},
  author = {Nathan C. Grover},
  year = {1922},
  doi = {10.3133/wsp500},
  url = {https://pubs.usgs.gov/publication/wsp500},
  note = {Source identifier: wsp500}
}