http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Regional analysis of the effects of land use on stream-water quality, methodology and application in the Susquehanna River Basin, Pennsylvania and New York
1 online resource (v, 60 pages) : illustrations, maps.
"Prepared in cooperation with the U.S. Environmental Protection Agency."
Includes bibliographical references (pages 43-48).