RT Journal Article SR Electronic T1 Managing riparian ecosystems to control nonpoint pollution JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 87 OP 91 VO 40 IS 1 A1 Richard Lowrance A1 Ralph Leonard A1 Joseph Sheridan YR 1985 UL http://www.jswconline.org/content/40/1/87.abstract AB