TY  - BOOK
AU  - Umesh Sehgal 
AU  - Kuljeet Kaur
TI  - Network Security And Cryptography
U1  - 81.327.8:65.012.8  UME 
PY  - 2009///
CY  - New Delhi
PB  - S K Kataria And Sons
KW  - Network Security
ER  -