Abler, D.G., and Shortle, J.S.
1991. “The Political Economy of Water Quality Protection from Agricultural Chemicals.” Northeastern Journal of Agricultural and Resource Economics
2011. “Custom Work Charges in Maryland 2011.” Fact Sheet FS683, University of Maryland Extension, College Park, MD.
Environmental Protection Agency. 1999. Draft Guidance for Water Quality-based Decisions: The TMDL Process (2nd edition). Report EPA-841-D-99-001, Office of Water, EPA, Washington, DC. Available at water.epa.gov/lawsregs/lawsguidance/cwa/tmdl/propguid_Guidance.cfm. (accessed October 11, 2010).
GAMS Development Corporation. 2011. “General Algebraic Modeling System” web page. GAMS Development Corporation, Washington, DC. URL: www.gams.com (accessed August 18, 2011).
2000. “The Use of Economic Instruments and Green Taxes to Complement an Environmental Regulatory Regime.” Water, Air, and Soil Pollution
Hoag, D.L., and Hughes-Popp, J.S.
1997. “Theory and Practice of Pollution Credit Trading in Water Quality Management.” Review of Agricultural Economics
Horan, R.D., and Lupi, F.
2005. “Economic Incentives for Controlling Trade-related Biological Invasions in the Great Lakes.” Agricultural and Resource Economics Review
Jung, C., Krutilla, K., and Boyd, R.
1996. “Incentives for Advanced Pollution Abatement Technology at the Industry Level: An Evaluation of Policy Alternatives.” Journal of Environmental Economics and Management
Maryland Department of Agriculture. 2011. Cover Crop Program, 2011. Maryland Department of Agriculture, Annapolis, MD.
Maryland Department of Agriculture. 2012. Maryland's Winter Cover Crop Program. Maryland Department of Agriculture, Annapolis, MD. Available at www.mda.maryland.gov/pdf/cc_poster12.pdf (accessed February 13, 2013).
Mid-Atlantic Water Program. 2006. The Mid-Atlantic Nutrient Management Handbook. MAWP 06-02, Mid-Atlantic Water Program, Virginia Tech University, Blacksburg, VA.
National Agricultural Statistics Service. 2010a. “Quick Stats.” NASS, U.S. Department of Agriculture, Washington, DC. Available at http://quickstats.nass.usda.gov (accessed December 21, 2010).
National Research Council. 2001. Assessing the TMDL Approach to Water Quality Management. Washington, DC: National Academy Press.
Ribaudo, M., Horan, R.D., and Smith, M.E.
1999. Economics of Water Quality Protection from Nonpoint Sources: Theory and Practice. Economic Research Service, U.S. Department of Agriculture, Washington DC.
Simpson, T., and Weammert, S.
2007. Cover Crop Practices: Definition and Nutrient and Sediment Reduction Efficiencies. University of Maryland/Mid-Atlantic Water Program, College Park, MD.
Staver, K., and Brinsfield, R.B.
1998. “Using Cereal Grain Winter Cover Crops to Reduce Groundwater Nitrate Contamination in the Mid-Atlantic Coastal Plain.” Journal of Soil and Water Conservation
Stephenson, K., Norris, P., and Shabman, L.A.
1998. “Watershed-based Effluent Trading: The Nonpoint Source Challenge.” Contemporary Economic Policy
University of Maryland and Maryland Departments of Planning, Agriculture, Environment, and Natural Resources. 2010. “Nutrient Management Law and Regulations Overview, 2010.” State of Maryland, Annapolis, MD.
Virginia Department of Conservation and Recreation. 1995. Virginia Nutrient Management Standards and Criteria. Division of Soil and Water Conservation, Richmond, VA.
Wieland, R., Parker, D., Gans, W., and Rigelman, J.
2010. Least-cost Supply of Nitrogen Reduction from Two Important Agricultural Non-point Source Best Management Practices in Maryland. Harry R. Hughes Center for Agro-Ecology, College Park, MD.
2009. “Improving the Cost-effectiveness of Agricultural Pollution Control: The Use of Performance-based Incentives.” Journal of Soil and Water Conservation
Winsten, J.R., Baffaut, C., Britt, J., Borisova, T., Ingels, C., and Brown, S.
2011. “Performance-based Incentives for Agricultural Pollution Control: Identifying and Assessing Performance Measures in the United States.” Water Policy
Winsten, J.R., and Hunter, M.
2011. “Using Pay-For-Performance Conservation to Address the Challenges of the Next Farm Bill.” Journal of Soil and Water Conservation