University of Cambridge. Cavendish Laboratory. Energy Research Group, World Energy Conference, & Bloodworth, I. J. (1978). World energy demand: The full report to the Conservation Commission of the World Energy Conference : 'World energy demand to 2020'. IPC Science and Technology Press for the WEC.

University of Cambridge. Cavendish Laboratory. Energy Research Group, World Energy Conference, and I. J. Bloodworth. World Energy Demand: The Full Report to the Conservation Commission of the World Energy Conference : 'World Energy Demand to 2020'. Guildford, <Surrey> ; New York: IPC Science and Technology Press for the WEC, 1978.

University of Cambridge. Cavendish Laboratory. Energy Research Group, et al. World Energy Demand: The Full Report to the Conservation Commission of the World Energy Conference : 'World Energy Demand to 2020'. IPC Science and Technology Press for the WEC, 1978.