Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1972. Softcover. Item #45754
A thick volume of 1434 pages with bibliography and index. Bound in original gray paper covers printed in black. Library stamp on the front cover and Geography Dept. stamp on the first and last pages. No other library markings, plates or pockets were ever present. Short mended tear to the front cover. A very good copy.