1. 1980 Annual Report to Congress, Volume Two: Data;Energy Information Administration,1981
2. Energy Information Administration, Monthly Energy Review. U.S. Department of Energy, Washington, D.C., DOE/EIA-0035, several monthly issues.
3. Bureau of Economic Analysis, Survey of Current Business. U.S. Department of Commerce, Washington, D.C., sevt monthly issues.
4. Building a Sustainable Future;Solar Energy Research Institute,1981
5. Alternative Energy Demand Futures to 2010;National Academy of Sciences;Report of the Demand and Conservation Panel to the Committee on Nuclear and Alternative Energy Systems,1979