TY  - BOOK
AU  - VISWANATHAN, Thiagarajan
AU  - 
TI  - Telecommunication switching systems and networks
SN  - 8120307135
U1  - 621.382 
PY  - 1992///
CY  - DELHI
PB  - PRENTICE-HALL OF INDIA
KW  - COMMUNICATION ENGINEERING
ER  -