National Research Council (U.S.). Committee to Improve the U.S. Geological Survey National Water-Quality Assessment Program & ebrary, Inc. (2002). Opportunities to improve the U.S. Geological Survey National Water Quality Assessment Program. National Academy Press.
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Chicago-viite (17. p.)
National Research Council (U.S.). Committee to Improve the U.S. Geological Survey National Water-Quality Assessment Program ja Inc ebrary. Opportunities to Improve the U.S. Geological Survey National Water Quality Assessment Program. Washington, D.C. ; [Great Britain]: National Academy Press, 2002.
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MLA-viite (9. p.)
National Research Council (U.S.). Committee to Improve the U.S. Geological Survey National Water-Quality Assessment Program ja Inc ebrary. Opportunities to Improve the U.S. Geological Survey National Water Quality Assessment Program. National Academy Press, 2002.
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