@misc{indiciae65d1b18cd32e, title = {Surface water supply of the United States, 1941, Part III, Ohio River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1943}, doi = {10.3133/wsp923}, url = {https://pubs.usgs.gov/publication/wsp923}, note = {Source identifier: wsp923} }