@misc{indiciaee6700ac23398, title = {Surface water supply of the United States, 1947, Part III, Ohio River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1950}, doi = {10.3133/wsp1083}, url = {https://pubs.usgs.gov/publication/wsp1083}, note = {Source identifier: wsp1083} }