http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania
hydrology of a small carbonate site near Ephrata, Pennsylvania, prior to implementation of nutrient management
Evaluation of agricultural best management practices in the Conestoga River headwaters, Pennsylvania
1 online resource (viii, 88 pages) : illustrations, maps.
"Prepared in cooperation with the Pennsylvania Department of Environmental Protection."
Includes bibliographical references (pages 86-88).
Water-resources investigations report ; 93-4173
Water-quality study of the Conestoga River Headwaters, Pennsylvania