TY  - BOOK
AU  - Simon Singh
TI  - The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography
SN  - 9780385495325
U1  - 652.8'09 
PY  - 2000///
CY  - New York
PB  - Anchor Books
KW  - Cryptography
KW  - History
KW  - Data encryption
KW  - Nonfiction
ER  -