@misc{indiciae0090d1001a69, title = {Surface water supply of the United States, 1936, Part III, Ohio River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1938}, doi = {10.3133/wsp803}, url = {https://pubs.usgs.gov/publication/wsp803}, note = {Source identifier: wsp803} }