By
Richard A. Smith and Richard B. Alexander
Managing Nutrients and Pathogens from Animal Agriculture
U.S. Geological Survey
Reston, Virginia 20192
Proceedings from the
Natural Resource, Agriculture, and Engineering Service
Conference for Nutrient Management Consultants, Extension Educators,
and Producer Advisors
March 28-30, 2000, Camp Hill, Pennsylvania
The URL for this page is <water.usgs.gov/nawqa/sparrow/nut_sources/nut_sources.htm>