TY  - BOOK
AU  - Thomas, Thomas M
TI  - Network security first-step
SN  - 9781587200991
SN  - 200310798
U1  - 005.8 THO 
PY  - 2004///
CY  - Indianapolis, IN
PB  - Cisco Press
KW  - Computer networks - Security measures
N1  - Includes index
ER  -