TY - RPRT TI - Surface water supply of the United States, 1919-1920, Part I, North Atlantic slope basins AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1923 DO - 10.3133/wsp501 UR - https://pubs.usgs.gov/publication/wsp501 ID - wsp501 ER -