http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Distribution and trend of nitrate, chloride, and total solids in water in the Magothy Aquifer in southeast Nassau County, New York, from the 1950's through 1973
1 online resource (vi, 47 pages) : illustrations, maps.
"Prepared in cooperation with the Nassau County Department of Public Works."
Includes bibliographical references (pages 47).