http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Sustainability of natural attenuation of nitrate in agricultural aquifers
1 folded sheet (4 unnumbered pages) : color illustrations, color map.
Christopher T. Green and Barbara A. Bekins ; edited by Peter H. Stauffer.
Title from title screen (viewed on June 15, 2011).
Includes bibliographical references (page [4]).
Fact sheet (Geological Survey (U.S.)) ; 2010-3077