Effects of agricultural land-management practices on water quality in northeastern Guilford County, North Carolina, 1985-90 /
Harned, Douglas.
Guilford County Soil and Water Conservation District (N.C.)
Washington : U.S. G.P.O. ; Denver, CO : For sale by the U.S. Geological Survey Information Services,
1995.
"Prepared in cooperation with the Guilford County Soil and Water Conservation District"--Cover.
Includes bibliographical references (p. 40-42).
Agricultural pollution
Water quality