TY  - BOOK
AU  - Viswanathan, Thiagarajan
TI  - Telecommunication switching systems and networks
SN  - 9788120307131
U1  - 621.383 
PY  - 2008///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Telecommunications
KW  - Telecommunication networks
ER  -