TY  - BOOK
AU  - Carr, Houston H
AU  - Carr, Houston H
AU  - Snyder, Charles A
TI  - Data communications and network security
SN  - 9780070636552
U1  - 004.7 CAR 
PY  - 2007///
CY  - New Delhi
PB  - TMH
KW  - networking
KW  - data communications
ER  -