TY  - BOOK
AU  - Forouzan, Behrouz A
AU  -  Sophia chung fegan n
TI  - Data communications and networking
SN  - 0070584087
U1  - 005.91 
PY  - 2004///
CY  - New Delhi
PB  - Tata mcgraw-hill publishing
N1  - Index include
ER  -