http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Quality of the Arkansas River and irrigation-return flows in the lower Arkansas River Valley, Colorado
Southeastern Colorado Water Conservancy District (Colo.)
1 online resource (vi, 85 pages) : illustrations, maps.
"Prepared in cooperation with the Southwestern Colorado Water Conservancy District."
Includes bibliographical references (pages 41-42).
Water-resources investigations report ; 84-4273