TY  - BOOK
AU  - Viswanathan, Thiagarajan
TI  - TELECOMMUNICATION SWITCHING SYSTEMS AND NETWORKS
SN  - 0876927134
U1  - 621.3851 
PY  - 1992///
CY  - New Delhi
PB  - Prentice Hall Of India
KW  - Telecommunication Systems
KW  - Information Networks
ER  -