@misc{indiciaec1f244ed2d05, title = {Surface water supply of the United States, 1943, Part III, Ohio River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1945}, doi = {10.3133/wsp973}, url = {https://pubs.usgs.gov/publication/wsp973}, note = {Source identifier: wsp973} }