TY  - BOOK
AU  - Vacca,John R., Ellts, Scott R
AU  - x
TI  - Firewalls: jumpstart formetwork and systems administrators
SN  - 8131203409
U1  - 005.8/V113f 
PY  - 2005///
CY  - New Delhi
PB  - x
KW  - Data security
KW  - Computer science
N1  - Includes
ER  -