TY  - GEN
AU  - Harrington, Jan L
AU  - Harrington, Jan L
TI  - Network security: a practical approach
SN  - 9 788131 202166
U1  - 004.7 HAR 
PY  - 2005///
CY  - Noida
PB  - Morgan Kaufmann publishers
KW  - Network security
KW  - Encryption
ER  -