Quality of surface waters of the United States, 1968
Subtitle: Part 3. Ohio River Basin.
Series: U.S. Geological Survey water-supply paper -- 2093
Publisher: U.S. Government Printing Office
Published: 1973
Place of publication: Washington, DC
Language: eng
Number of pages: 309
Subjects: Water-supply -- United States.; Water -- Composition.
Notes: 1