000
00285nam a22001097a 4500
999
_c
8148
_d
8148
100
_a
Stallings, William
_9
895
245
_a
Cryptography and Network Security : principles and practice
250
_a
3
260
_a
New Delhi
_b
Pearson Education
_c
2003
300
_a
xiv, 681p
942
_c
BOOK