LEADER 00000cam  2200637 i 4500 
001    ocn841199197 
003    OCoLC 
005    20150512033259.0 
008    130422t20142014ilua   j b    001 0 eng   
010      2013015848 
016 7  016558871|2Uk 
019    857405454 
020    9781432996062|q(hb) 
020    1432996061|q(hb) 
020    9781432996130|q(pb) 
020    1432996134|q(pb) 
035    (OCoLC)841199197|z(OCoLC)857405454 
040    DLC|beng|erda|cDLC|dOCLCO|dOCLCF|dBTCTA|dYDXCP|dUKMGB|dBDX
       |dQBX|dGK8 
042    pcc 
043    n-us---|ae-uk--- 
049    CKEA 
050 00 D810.C88|bB36 2014 
082 00 940.54/8641|223 
092    940.5486 
100 1  Barber, Nicola. 
245 10 Who broke the wartime codes? /|cNicola Barber. 
264  1 Chicago, Illinois :|bHeinemann Library,|c[2014] 
264  4 |c©2014 
300    64 pages :|billustrations :|c24 cm. 
336    text|2rdacontent 
337    unmediated|2rdamedia 
338    volume|2rdacarrier 
490 1  Primary source detectives 
504    Includes bibliographical references (pages 62-63) and 
       index. 
505 0  A daring raid -- What were wartime codes? -- Who wanted to
       break them? -- What sort of people were they? -- What did 
       they do to break the codes? -- Who used the information 
       they found? -- What happened to the code-breakers after 
       the war? -- Why was their work significant? 
526 0  Accelerated Reader AR|bMG|c8.0|d2.0|z166989. 
611 27 World War (1939-1945)|2fast|0(OCoLC)fst01180924 
648  7 1900 - 1999|2fast 
650  0 World War, 1939-1945|xCryptography|vJuvenile literature. 
650  0 World War, 1939-1945|xElectronic intelligence|zUnited 
       States|vJuvenile literature. 
650  0 World War, 1939-1945|xElectronic intelligence|zGreat 
       Britain|vJuvenile literature. 
650  0 Cryptographers|zUnited States|xHistory|y20th century. 
650  0 Cryptographers|zGreat Britain|xHistory|y20th century. 
650  0 Cryptography|zUnited States|xHistory|y20th century
       |vJuvenile literature. 
650  0 Cryptography|zGreat Britain|xHistory|y20th century
       |vJuvenile literature. 
650  7 Cryptographers.|2fast|0(OCoLC)fst00884550 
650  7 Cryptography.|2fast|0(OCoLC)fst00884552 
650  7 Electronic intelligence.|2fast|0(OCoLC)fst00907316 
651  7 Great Britain.|2fast|0(OCoLC)fst01204623 
651  7 United States.|2fast|0(OCoLC)fst01204155 
655  7 History.|2fast|0(OCoLC)fst01411628 
655  7 Juvenile works.|2fast|0(OCoLC)fst01411637 
830  0 Primary source detectives. 
994    92|bCKE