TY - BOOK AU - TI - Ultra goes to war : the secret story / Ronald Lewin: SN - 0091344204 U1 - 940.5486 PY - 1978/// CY - London: PB - Hutchinson education, KW - GUERRA MUNDIAL, 1939-1945 KW - CRIPTOGRAFÍA KW - INTELIGENCIA MILITAR N1 - Bibliography: p. 379-[383]; 1. The glow lamp machine.-- 2. The british breakthrough.-- 3. A plan called smith.-- 4. Station X.-- 5. The secret limeys.-- 6. The mediteranean shores.-- 7. Mr Chtchill´s secret source.-- 8. Ultramarine.-- 9. The american involment.-- 10. Alamein to Alps.-- 11. Overture and beginners.-- 12. Finale and curtains ER -