| 000 | 02435nam a2200505 i 4500 | ||
|---|---|---|---|
| 001 | 17706641 | ||
| 005 | 20160814170108.0 | ||
| 008 | 130422s2014 ilua c b 001 0 eng | ||
| 010 | _a 2013015848 | ||
| 020 |
_a9781432996062 (hb) : _c$18.75 |
||
| 020 | _a1432996061 (hb) | ||
| 020 | _a9781432996130 (pb) | ||
| 020 | _a1432996134 (pb) | ||
| 040 |
_aDLC _beng _cDLC _erda _dDLC |
||
| 042 | _apcc | ||
| 043 |
_an-us--- _ae-uk--- |
||
| 050 | 0 | 0 |
_aD810.C88 _bB36 2014 |
| 082 | 0 | 0 |
_a940.54/8641 _223 |
| 092 | _a940.54 BAR | ||
| 100 | 1 |
_aBarber, Nicola, _eauthor. |
|
| 245 | 1 | 0 |
_aWho broke the wartime codes? / _cNicola Barber. |
| 264 | 1 |
_aChicago, Illinois : _bHeinemann Library, _c[2014] |
|
| 300 |
_a64 pages : _billustrations (some color) ; _c25 cm |
||
| 336 |
_atext _2rdacontent |
||
| 337 |
_aunmediated _2rdamedia |
||
| 338 |
_avolume _2rdacarrier |
||
| 490 | 0 | _aPrimary source detectives | |
| 504 | _aIncludes bibliographical references (pages 62-63) and index. | ||
| 505 | 0 | _aA 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? | |
| 510 | 3 | _aJunior Library Guild | |
| 520 | _aThis account of the Allied efforts to decode Axis messages--and keep the success of their efforts secret--describes the men and women behind the scenes, as well as the institutions they served, and the early computers devised for the purpose. | ||
| 521 | 1 | _a11-13. | |
| 521 | 2 | _a6-8. | |
| 521 | 8 |
_a1130L _bLexile. |
|
| 526 | 0 |
_aAccelerated Reader _bMG _c8.0 _d2.0 _z166989 EN. |
|
| 526 | 0 |
_aReading Counts _b6-8 _c9.7 _d6 _zQ64136 |
|
| 586 | _aA Junior Library Guild selection (JLG) | ||
| 650 | 0 |
_aWorld War, 1939-1945 _xCryptography _vJuvenile literature. |
|
| 650 | 0 |
_aWorld War, 1939-1945 _xElectronic intelligence _zUnited States _vJuvenile literature. |
|
| 650 | 0 |
_aWorld War, 1939-1945 _xElectronic intelligence _zGreat Britain _vJuvenile literature. |
|
| 650 | 0 |
_aCryptographers _zUnited States _xHistory _y20th century _vJuvenile literature. |
|
| 650 | 0 |
_aCryptographers _zGreat Britain _xHistory _y20th century _vJuvenile literature. |
|
| 650 | 0 |
_aCryptography _zUnited States _xHistory _y20th century _vJuvenile literature. |
|
| 650 | 0 |
_aCryptography _zGreat Britain _xHistory _y20th century _vJuvenile literature. |
|
| 999 |
_c14257 _d14257 |
||