TY  - BOOK
AU  - Stallings William
AU  - Stallings William
TI  - Cryptography and network security: Principles and practice
SN  - 9788131761663 (pbk)
U1  - D65,8(B):71:(894), P3;Q1-;2 
PY  - 2011///
CY  - South Asia 
PB  - Pearson education    
N1  - Include bibliographical references; Index 735-743p
ER  -