LEADER 01088cam a2200325Ia 4500001    44799
005    20240621144801.0
008    000628s1999    enka     b    001 0 eng d
020    0750923164
035    (OCoLC)ocm43820825
035    44799
049    LHMA
040    MBB |beng |erda |cMBB |dLHM
090    D810.C88 |bH379 1999
100 1  Harper, Stephen, |d1924-
245 10 Capturing enigma : |bhow HMS Petard seized the German naval codes / |cStephen Harper.
264  1 Stroud : |bSutton, |c1999.
300    xii, 180 pages : |billustrations ; |c21 cm
336    text |btxt |2rdacontent
337    unmediated |bn |2rdamedia
338    volume |bnc |2rdacarrier
504    Includes bibliographical references and index.
591    Record updated by Marcive processing 21 June 2024
650  0 Enigma cipher system.
610 20 Petard (Ship)
610 10 Great Britain. |bRoyal Navy.
650  0 World War, 1939-1945 |xCryptography.
650  0 World War, 1939-1945 |xNaval operations, British.
994    E0 |bLHM
852 0   |bstacks |hD810.C88 |iH379 1999