@misc{indiciae80f6c823b985, title = {Surface water supply of the United States, 1937, Part I, North Atlantic slope basins}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1939}, doi = {10.3133/wsp821}, url = {https://pubs.usgs.gov/publication/wsp821}, note = {Source identifier: wsp821} }