TY  - BOOK
AU  - Viswanathan, Thiagaranjan
TI  - Telecommunication Switching Systems and Networks
SN  - 978-81-203-0713-1
U1  - 621.382 
PY  - 1992///
CY  - New Delhi
PB  - PHI Learning Private limited
KW  - Telecommunication , Switching , Networks
N1  - Includes Index; Book Emporium
ER  -