http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Quality of ground water in agricultural areas of the San Luis Valley, South-Central Colorado
Rio Grande Water Conservation District (Colo.)
1 online resource (v, 37 pages) : illustrations, maps.
by Patrick Edelmann and David P. Buckles.
"Prepared in cooperation with the Rio Grande Water Conservation District."
Includes bibliographical references (pages 25-26).
Water-resources investigations report ; 83-4281