Capturing enigma how HMS Petard seized the German naval codes
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| Format: | Book |
| Published: |
Stroud, EnglandlbSutton Pub.lc1999
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| 039 | 9 | |y 200910081438 |z VLOAD | |
| 090 | 0 | 0 | |a D810.C88 |b .H37 1999 |
| 100 | 1 | 0 | |a HarperlhStephen |
| 245 | 1 | 0 | |a Capturing enigma |b how HMS Petard seized the German naval codes |c Stephen Harper |
| 260 | 0 | 0 | |a Stroud, EnglandlbSutton Pub.lc1999 |
| 300 | |a 180p. [8]p. of plates |b ill. |c 21cm | ||
| 504 | 0 | 0 | |a Includes bibliographical references (p.[173]-174) and index |
| 610 | 1 | 0 | |a Petard (ship) |
| 610 | 1 | 0 | |a Great Britain |c Royal Navy |
| 650 | 0 | 0 | |a World war, 1939-1945 |x Cryptography |
| 650 | 0 | 0 | |a World war, 1939-1945 |x Naval operations, British |
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