Washington, DC: Government Printing Office/GPO/U.S. Geological Survey/USGS, 1979. First Edition. Softcover. Item #37960
Describes systems for Massachusetts, Rhode Island, Maine, Pennsylvania, New York, Virginia, West Virginia, Maryland, Ohio, Kentucky, Tennessee, Georgia, Alabama, Mississippi, Michigan, Indiana, and Illinois. Not continuously paginated. Contains maps, graphs, tables, cross-sectons and references. Mild curl to the leading edge of the front cover. A very good plus copy.