G. F. Ray
1915
Energy management
Industrial materials
The Diffusion of new industrial processes
The innovation process in the energy industries
European energy prospects to 1990
Neue Technologien in der Industrie
The competitiveness of British industrial products
The diffusion of mature technologies
The diffusion of technology in Finland
The European energy market in 1980
The European energy outlook to 1985
Western Europe and the energy crisis