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|a9781405852227|q(pbk.)
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|bchi|cKCBS|eAACR2
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|aeng
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|a428.6
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|bLHEL|cHE002166|dDRA 40|e428/PEN:2|tDDC|m0|pLR|fLH|zCIR
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100 |
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|
|aBeatty, Ken.
|
245 |
10
|
|aSecret codes. / |cKen Beatty.
|
260 |
|
|aHarlow : |bPearson Education Limited, |c2007.
|
300 |
|
|aiv, 76 p. : |bill. ; |c20 cm.
|
490 |
0
|
|aPenguin active reading(4):Level Intermediate
|
650 |
0
|
|aReaders.
|
650 |
0
|
|acryptography--Juvenile literature.
|
983 |
|
|aKCBS
|