TY  - BOOK
AU  - Whitman, Michael, E and Mattord, Herbert, J 
TI  - Principles of information security 
SN  - 9788131516454
U1  - 004.65 AHI  
PY  - 2013///
CY  - Cengage learning 
PB  - New Delhi 
KW  - COMPUTER NETWORK
ER  -