TY  - BOOK
AU  - Vishwanathan T.
TI  - Telecommunication Switching Systems and Networks
SN  - scst06681
U1  - . 
PY  - 1992///
CY  - New Delhi
PB  - Prentice Hall
KW  -  Switching
KW  -  Systems
KW  -  Telecommunication
KW  - Networks
ER  -