Water quality in the Allegheny and Monongahela River Basins : Pennsylvania, West Virginia, New York, and Maryland, 1996-98 /
Anderson, Robert M.,1961-
Geological Survey (U.S.)
Reston, VA : U.S. Geological Survey, National NAWQA Program ; Denver, CO : Free on application to the U.S. Geological Survey, Information Services,
2000.
Includes bibliographical references (p. 25-26).
Water quality
Water quality