http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Shallow ground-water quality beneath cropland in the Red River of the North Basin, Minnesota and North Dakota, 1993-95
National Water-Quality Assessment Program (U.S.)
1 online resource (viii, 52 pages) : illustrations (some color), color maps.
"Contribution from the National Water-Quality Assessment Program."
Includes bibliographical references (pages 39-43).
Water-resources investigations report ; 97-4001