A.N. Sharpley

Nonpoint pollution of surface waters with phosphorus and nitrogen
Carpenter, Stephen R., Nina F. Caraco, D.L. Correll, Robert W. Howarth, A.N. Sharpley, and V.H. Smith. 1998. “Nonpoint Pollution Of Surface Waters With Phosphorus And Nitrogen”. Issues Ecol. 3: 1-12.