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
effects of nutrient management on water quality in the Little Conestoga Creek headwaters, 1983-89
1 online resource (vi, 49 pages) : illustrations, maps.
"Prepared in cooperation with the Pennsylvania Department of Environmental Protection."
GPO Cataloging Record Distribution Program (CRDP).
Includes bibliographical references (pages 47-49).
Water-quality study of the Conestoga River Headwaters, Pennsylvania
Water-resources investigations report ; 95-4046