TY  - BOOK
AU  - Singh,Simon
TI  - The code book: the evolution of secrecy form Mary Queen of Scots to quantum cryptography
SN  - 0-965-073330
PY  - 1999///
CY  - New York
PB  - Doubleday
KW  - Cryptography--History
KW  - Data encrytion (Computer science)--History
N1  - Quality Paperback Book Club, 4/2000
ER  -