| Entry Text: | GARDNER, W. J. R. Decoding History: The Battle of the Atlantic and Ultra. xvii, 263p., bibliog., illus., index. London: Macmillan; Annapolis: NIP, 1999. ISBN: 0333693035.
An overview of the battle which reassesses ULTRA and puts it in its context as a useful and very occasionally crucial tool, but ultimately only one facet in a complicated campaign with many dimensions. |
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