1. Energy in Developing Countries;Office of Technology Assessment,1991
2. Alcohol Fuels: Options for Developing Countries;National Research Council,1983
3. Producer Gas: Another Fuel for Motor Transport;National Research Council,1983
4. Oxygenate fuels for diesel engines: a survey of world-wide activities;Onion;Biomass,1983
5. Rudolf Diesel, Pioneer of the Age of Power;Nitske,1965