1. U.S. Department of Agriculture—Natural Resource Conservation Service (USDA-NRCS). Farm Bill 2002, Wetlands Reserve Program: Program Description. Internet site: http://www.nrcs.usda.gov/programs/farmbill/2002/pdf/WRPPrDes.pdf (Accessed February 10, 2004c).
2. U.S. Department of Agriculture—Natural Resource Conservation Service (USDA-NRCS). Farm Bill 2002, Wetlands Reserve Program: Key Points. Internet site: http://www. nrcs.usda.gov/programs/farmbill/2002/pdf/WRPKyPts.pdf (Accessed February 10, 2004b).
3. U.S. Department of Agriculture—Natural Resource Conservation Service (USDA-NRCS). Conservation Programs Manual Wetlands Reserve Program. Internet site: http://policy.nrcs.usda.gov/scripts/lpsiis.dll/M/m_440_514_b.htm (Accessed February 10, 2004a).
4. CRP: What Economic Benefits?;Ribaudo;Journal of Soil and Water Conservation,1989