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2. Hinsley , F.H. Thomas , E.E. Ransom , C.F.G. and Knight , R.C. 1979.British Intelligence in the Second World War: Its Influence on Strategy and Operations, Vol. 1, 40London: HMSO.
3. Rusbridger , James and Nave , Eric . 1991.Betrayal at Pearl Harbor: How Churchill Lured Roosevelt Into World War II, 437278591147NY: Summit Books.
4. Hinsley .British Intelligence in the Second World War40 (note 2)
5. Rusbridger and Nave .Betrayal at Pearl Harbor7275