1. Douglas R. Bohi, and Michael A. Toman (1984 ), Analyzing Nonrenewable Resource Supply, Resources for the Future, Washington, D.C.
2. Aspects of copper supplies for the 1990s
3. Frederick R. Demler (1983 ). ‘Beverage Containers’, in Tilton (1983).
4. Istvan Dobozi (1988 ). ‘Centrally Planned Economies’, in Tilton (1988).