@misc{indiciae55a114abc6f5,
  title = {Mean annual runoff in the upper Ohio River basin, 1941-70, and its historical variation},
  author = {Robert M. Beall},
  year = {1978},
  doi = {10.3133/wsp2042},
  url = {https://pubs.usgs.gov/publication/wsp2042},
  note = {Source identifier: wsp2042}
}