TY  - BOOK
AU  - Adams,Simon
TI  - Code breakers : : from hieroglyphs to hackers
T2  - Dorling Kindersley mega bites
SN  - 075133751X
U1  - 652 23
PY  - 2002///
CY  - London : 
PB  - Dorling Kindersley , 
KW  - Ciphers ; Cryptography
ER  -