Nonpoint Source Pollution: SCS Perspective (p. 239)
Nonpoint Source Pollution from Plant Nutrients (p. 241)
Nonpoint Source Pollution: Managing Nutrients a Key to Control (p. 244)
Agricultural Land Treatment Project Planning for Off-Site Phosphorus Reduction (p. 245)
US Enivironmental Protection Agency, "Agricultural Issues: Eastern and Southern Experience" (1985). Government Documents. 65.