TY  - BOOK
AU  - Harrington, Jan L  .
TI  - Network security: a practical approach / 
SN  - 0-12-311633-3
U1  - BV 
PY  - 2006///
CY  - New Delhi : 
PB  - Elsevier India Pvt. Ltd. , 
KW  - Network
ER  -