TY  - BOOK
AU  - Forouzan, Bhrouz, A 
TI  - Business data communication 
SN  - 0-07-052848-9 
U1  - 005.71 FOR  
PY  - 2003///
CY  - Tata mcgraw hill 
PB  - New Delhi 
KW  - DATA COMMUNICATION
ER  -