@misc{indiciae315065c74f4c,
  title = {Surface water supply of the United States, 1919-1920, Part III, Ohio River basin},
  author = {Nathan C. Grover and Oliver W. Hartwell and Guy C. Stevens and Warren E. Hall and Warren R. King and Carl G. Paulsen},
  year = {1924},
  doi = {10.3133/wsp503},
  url = {https://pubs.usgs.gov/publication/wsp503},
  note = {Source identifier: wsp503}
}