1. I. Smart, The Future of the British Deterrent: Technical, Economic and Strategic Issues (The Royal Institute of International Affairs, 1977) pp. 51–3 and 55–8.
2. H. Macmillan, At the End of the Day, 1961–1963 (Macmillan, 1973) p. 363.
3. R. Burt, ‘The Scope and Limits of SALT’, Foreign Affairs, LVI (July 1978) 763.
4. M. M. Gowing, Britain and Atomic Energy (Macmillan, 1964) app. 2, p. 395.
5. M. M. Gowing, Independence and Deterrence: Britain and Atomic Energy 1945–1952, 2 vols (Macmillan, 1974) vol. I, pp. 182–3.