TY  - BOOK
AU  - Viswanathan T.,
TI  - Telecommunication Switching Systems and Networks: Telecommunication Switching Systems and Networks
SN  - 9788120307131
U1  - 621.384 
PY  - 1992/// (c) 2012
CY  - New Delhi
PB  - PHI Learning Pvt.  Ltd.
KW  - Telecommunication & Switching Systems
ER  -