TY  - BOOK
AU  - Anderson, Robert M.
TI  - Water quality in the Allegheny and Monongahela river basins Pennsylvania, West Virginia, New York, and Maryland, 1996-98
SN  - 0607954116
PY  - 2000///
CY  - Reston, VA : U.S. Geological Survey
KW  - Water quality -- Allegheny river watershed
KW  - Water quality -- Monongahela river watershed
N1  - Includes bibliographical references (p. 27-28)
ER  -