http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Computation and use of volume-weighted-average concentrations to determine long-term variations of selected water-quality constituents in lakes and reservoirs
1 online resource (v, 8 pages) : illustrations.
Includes bibliographical references (pages 8).
Water-resources investigations report ; 83-4287