Geological Survey (U.S.) & Fischer, J. M. (2004). Water quality in the Delaware River Basin, Pennsylvania, New Jersey, New York, and Delaware, 1998-2001. U.S. Dept. of the Interior, U.S. Geological Survey For sale by U.S. Geological Survey, Information Services.
Style de citation Chicago (17e éd.)Geological Survey (U.S.) et Jeffrey M. Fischer. Water Quality in the Delaware River Basin, Pennsylvania, New Jersey, New York, and Delaware, 1998-2001. Reston, Va., Denver, CO: U.S. Dept. of the Interior, U.S. Geological Survey For sale by U.S. Geological Survey, Information Services, 2004.
Style de citation MLA (9e éd.)Geological Survey (U.S.) et Jeffrey M. Fischer. Water Quality in the Delaware River Basin, Pennsylvania, New Jersey, New York, and Delaware, 1998-2001. U.S. Dept. of the Interior, U.S. Geological Survey For sale by U.S. Geological Survey, Information Services, 2004.