TY  - BOOK
AU  - Stallings, William  .
TI  - Network security essentials applications and standards / 
SN  - 81-7808-307-8
U1  - BV 
PY  - 2000///
CY  - Delhi : 
PB  - Pearson Education(Singapore) Pte. Ltd. , 
KW  - Computer science
ER  -