1. Department of Energy (1977). ‘Degree days’, Fuel Efficiency Booklet 7.
2. Department of Industry (1977). ‘A preliminary analysis of the potential for energy conservation in industry’.
3. Institution of Heating and Ventilating Engineers (1970). Guide Book, 4th edition.
4. (1977). Fuel Consumption in Industrial Buildings, Glasgow, Hulley and Kirkwood.
5. Industrial energy use-1: Power losses in electrically driven machinery