Ball, J. W. (2003). New cation-exchange method for field speciation of hexavalent chromium. U.S. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationBall, J. W. New Cation-exchange Method for Field Speciation of Hexavalent Chromium. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2003.
MLA (9th ed.) CitationBall, J. W. New Cation-exchange Method for Field Speciation of Hexavalent Chromium. U.S. Dept. of the Interior, U.S. Geological Survey, 2003.
Warning: These citations may not always be 100% accurate.