Classification and mapping og agricultural land for National Water-Quality assessment /

Autor Gilliom, Robert J., Thelin, Gail P.
Vydáno 1997

Design of the National water-quality assessment program : occurrence and distribution of water-quality conditions /

Autor Gilliom, Robert J., Alley, William M., 1952-, Gurtz, Martin E.
Vydáno 1995

The quality of our nation's waters : nutrients and pesticides /

Autor Fuhrer, Gregory J., Gilliom, Robert J., Hamilton, Pixie A., 1957-, Morace, Jennifer L., Nowell, Lisa H., Rinella, Joseph F., Stoner, Jeffrey D., Wentz, Dennis A.
Vydáno 1999

Concepts for national assessment of water availability and use : report to congress

Vydáno 2002

Nutrients in the nation's waters - too much of a good thing? /

Autor Mueller, David K., Helsel, Dennis R., 1951-
Vydáno 1996

Concepts for a national water-quality assessment program /

Autor Hirsch, Robert M., Alley, William M., 1952-, Wilber, William G.
Vydáno 1988

Applicability of ambient toxicity testing to national or regional water-quality assessment /

Autor Elder, John F. 1961-
Vydáno 1990

Water quality in the Puget Sound basin, Washington and British Columbia, 1996-98 /

Autor Ebbert, James C.
Vydáno 2000