TY  - BOOK
AU  - Forouzan, Behrouz A.
AU  - Fegan, Sophia Chung
TI  - Data communications and networking
SN  - 0070634149
U1  - 004.6 
PY  - 2006///
CY  - New Delhi
PB  - Tata McGraw - Hill Publishing company Ltd.
ER  -