Water quality in the Allegheny and Monongahela River Basins, Pennsylvania, West Virginia, New York and Maryland, 1996-98 - Anderson, Robert M., 1961- (Denver : U.S. Department of the Interior, 2000)
Keywords: hydrogeologie; hydrochemie; kvalita vody; podzemní vody; hydrochemistry; groundwaters; hydrogeology; water quality; Pensylvánie; Pennsylvania; studie; studies