TY  - BOOK
AU  - Viswanathan,Thiagarajan
TI  - Telecommunication switching systems and networks
SN  - 8120307135
AV  - TK5103 .V56 1992
PY  - 1992///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Telecommunication systems
KW  - Design and Telephone systems - - Design and construction
ER  -