1. Steering a New Course: Transportation, Energy, and the Environment;Gordon,1991
2. Energy Efficiency and the Environment;IEA (International Energy Agency),1991
3. A Strategy for Reducing Emissions of Greenhouses Gases from Personal Travel in Britain;Hughes,1992
4. Fiscal Policies Affecting Automobiles in W. Europe, Japan and the United States;Eriksson;LBL Draft Report,1993
5. Energy Efficiency and Human Activity: Past Trends, Future Prospects;Schipper,1992