TY  - GEN
AU  - Thhiagarajan Viswanathan
TI  - Telecommunication switching systems and networks
SN  - 0074636820
U1  - 621.382 22
PY  - 1992///
CY  - New Delhi
PB  - Prentice- Hall of India
KW  - Telecommunications
N1  - Engineering
ER  -