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Benefits of safer drinking water : the value of nitrate reduction

Crutchfield, Stephen R., author.
Washington, DC : United States Department of Agriculture, Economic Research Service, 1997. 1997

Geographic variation in the relationships of temperature, salinity or sigma [sub] tau versus plant n

Kamykowski, Daniel, author.
[Raleigh, N.C.] : North Carolina State University ; [Washington, D.C.] : [National Aeronautics and Space Administration], [1985] 1985

Monitored natural attenuation of inorganic contaminants in ground water

Ford, Robert G., author.
Ada, OK ; Cincinnati, Ohio : National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 2007-2010. 2010

Nitrate deposits

Gale, Hoyt S. (Hoyt Stoddard), 1876-1952 author.
[Washington, D.C.] : Department of the Interior, United States Geological Survey, 1912. 1912

Nitrate deposits in southeastern California with notes on deposits in southeastern Arizona and south

Noble, L. F. (Levi Fatzinger), 1882-1965 author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1931. 1931

Nitrate deposits in the Amargosa region, southeastern California

Noble, L. F. (Levi Fatzinger), 1882-1965 author.
[Washington, D.C.] : Department of the Interior, United States Geological Survey, 1922. 1922

Nitrate deposits of the United States

Mansfield, George Rogers, 1875-1947 author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1932. 1932

Use of classes based on redox and groundwater age to characterize the susceptibility of principal aq

McMahon, Peter B., author.
Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2012. 2012