1. C entral E lectricity 1966 Report of the Committee of Inquiry into Collapse of Cooling
2. G enerating B oard Towers at Ferrybridge, Monday, 1 November 1965
3. Extreme wind speeds over the United Kingdom for periods ending 1959;Shellard;Met. Mag., London,1962
4. Shellard , H. C. 1965 Extreme wind speeds over the United Kingdom for periods ending 1963 Clim. Serv. Memoranda No. 50.