TY  - BOOK
AU  - Harrington, Jan L 
TI  - Network Security: Apractical approach 
SN  - 9788131202166
AV  - TK 5105.5 .I57H37 2005 
PY  - 2005///.
CY  - USA
PB  -  Morgan Kaufmann
KW  - Networks
N1  - includes index
ER  -