Chemical characteristics of Delaware River water, Trenton, New Jersey, to Marcus Hook, Pennsylvania / by C.N. Durfor and W.B. Keighton ; prepared in cooperation with the city of Philadelphia. (Geological Survey water-supply paper ; 1262)
Chemical characteristics of Delaware River water, Trenton, New Jersey, to Marcus Hook, Pennsylvania / by C.N. Durfor and W.B. Keighton ; prepared in cooperation with the city of Philadelphia.