TY  - BOOK
AU  - Viswanathan, Thiagarajan
TI  - Tellecommunication switching systems and networks
SN  - 9788120307131
AV  - TK 5102.5 .V57 1992
PY  - 1992///
CY  - New Delhi
PB  - Prentice Hall of India
KW  - Tellecommunications
KW  - Netwrks
ER  -