Hicks, J. R. 1946. Value and Capital: An Inquiry into Some Fundamental Principles of Economic Theory. Oxford: Oxford University Press.
House, R. 1987. USMP Regional Agricultural Model (GAMS version guide), Unpublished mimeo, Economic Research Service, Washington, D.C.
Jorgenson, D., and B. Fraumeni. 1990. Productivity and U.S. Economic Growth: 1979-1985, unpublished discussion paper for the Harvard Institute of Economics, Harvard University, Cambridge, Mass.
Repetto, R., W. Magrath, M. Wells, C. Beer, and F. Rossini. 1989. Wasting Assets: Natural Resources in the National Income Accounts. Washington, D.C.: World Resources Institute.
Repetto, R., D. Rothman, P. Faeth, and D. Austin. 1996. Has Environmental Protection Really Reduced Productivity Growth? We Need Unbiased Measures. Washington, D.C.: World Resources Institute.
Ribaudo, M. 1989. Water Quality Benefits from the Conservation Reserve Program. Agricultural Economic Report No. 606. Washington, D.C.: Resources and Technology Division, Economic Research Service, U.S. Department of Agriculture.
United Nations. 1975. A System of National Accounts. New York: United Nations.
U.S. Environmental Protection Agency. 1994. National Air Pollution Emission Trends, 1900-1993. Washington, D.C.: Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency.
Williams, J. R., and H. G. Renard. 1985. Assessments of soil erosion and crop productivity with process model (EPIC). Pp. 68-102 in Soil Erosion and Crop Productivity, R. F. Follett and B. A. Stewart, eds. Madison, Wis.: American Society of Agronomy.
World Bank. 1988. World Development Report. Oxford: Oxford University Press.