TY - RPRT TI - Effectiveness of riparian buffers in controlling ground-water discharge of nitrate to streams in selected hydrogeologic settings of the North Carolina Coastal Plain AU - T.B. Spruill PY - 2004 DO - 10.2166/wst.2004.0164 UR - https://pubs.usgs.gov/publication/70026906 ID - 70026906 ER -