TY  - BOOK
AU  - Singh,Simon
TI  - Code book: the science of secrecy from ancient Egypt to quantum cryptography 
SN  - 9780385495325
U1  - 652.809 SIN 
PY  - 1999///
CY  - New York
PB  - Anchor Books
KW  - Cryptography
KW  - Data encryption (Computer science)
KW  - History
N1  - Rs.899/-
TB 2084/13; Includes bibliographical references (p. 388-393) and index
UR  - http://www.loc.gov/catdir/bios/random051/99035261.html
ER  -