@misc{indiciae7f8b23806424,
  title = {Mean annual runoff in the upper Ohio River basin, 1941-70, and its historic variation},
  author = {Robert M. Beall},
  year = {1976},
  doi = {10.3133/ofr76384},
  url = {https://pubs.usgs.gov/publication/ofr76384},
  note = {Source identifier: ofr76384}
}