1. Agronomy Guide, 2002. College of Agricultural Sciences, Penn State University, University Park, PA.
2. Relationship between phosphorus levels in soil and in runoff from corn production systems;Andraski;Journal of Environmental Quality,2003
3. AOAC, 1995. Official Methods of Analysis of AOAC International. In: Kane, P.F. (Ed.), Fertilizers, Association of Official Analytical Chemists International, Arlington, VA (Chapter 2).
4. Trace element chemistry in residual-treated soil: key concepts and metal bioavailability;Basta;Journal of Environmental Quality,2005
5. Risk perception, risk communication, and stakeholder involvement for biosolids management and research;Beecher;Journal of Environmental Quality,2005