1. World Energy Resources 1985–2020: Executive summaries of reports on resources, conservation and demand to the Conservation Commission of the World Energy Conference;Conservation Commission of the World Energy Conference,1978
2. Microorganisms as tools for rural processing of organic residues;Porter,1978
3. Microbiology and biomass agriculture;Porter,1978
4. Microorganisms as tools for biomass conversion and energy generation;DaSilva;Impact Sci. Soc.,1980
5. Social values and the limits to growth;Christensen;Technol. Forecast. Soc. Change,1978