TY  - BOOK
AU  - Singh,Simon
TI  - The code book : : the evolution of serecy from Mary Queen of scots to quantum cryptography / 
SN  - 0385495315
U1  - 652.809 
PY  - 1999///
CY  - New York
PB  - Doubleday, 
KW  - Management
KW  - Cryptography
KW  - Encryption
KW  - History
N1  - Includes bibliographical references and index
ER  -