Agriculture Department. Available online at <www.usda.gov> (accessed May 29, 2003).
Drummond, H. Evan, and John W. Goodwin. 2000. Agricultural Economics. New York: Prentice Hall.
Hallberg, Milton C. 1992. Policy for American Agriculture: Choices and Consequences. Ames: Iowa State Univ. Press.
U.S. Government Manual Website. Available online at <www.gpoaccess.gov/gmanual> (accessed November 10, 2003).
Law Library - American Law and Legal InformationFree Legal Encyclopedia: Additional voluntary contribution (AVC) to AirspaceAgriculture Department - Rural Development, Marketing And Regulatory Programs, Food, Nutrition, And Consumer Services, Food Safety