Water Quality in the Potomac River Basin, Maryland, Pennsylvania, Virginia, West Virginia and the District of Columbia, 1992-96, U.S. Geological Survey, Circular 1166, 1998, 2000.
APA Citation
Geological Survey (U.S.). (2000). Water Quality in the Potomac River Basin, Maryland, Pennsylvania, Virginia, West Virginia and the District of Columbia, 1992-96, U.S. Geological Survey, Circular 1166, 1998, 2000. [Place of publication not identified]: [publisher not identified].
MLA Citation
Geological Survey (U.S.). Water Quality In the Potomac River Basin, Maryland, Pennsylvania, Virginia, West Virginia And the District of Columbia, 1992-96, U.S. Geological Survey, Circular 1166, 1998, 2000. [Place of publication not identified]: [publisher not identified], 2000.
Warning: These citations may not always be complete (especially for serials).