TY  - BOOK
AU  - Kimpton,Diana
AU  - Phillips,Mike
TI  - Totally cracking codes
SN  - 9781407114569 (pbk.) :
U1  - 652.8 
PY  - 2010///
CY  - London
PB  - Scholastic
KW  - Ciphers
KW  - Juvenile literature
KW  - Cryptography
KW  - fast
ER  -