TY  - BOOK
AU  - VISWANATHAN, Thiagarajan.
TI  - Telecommunication Switching Systems And Networks
SN  - 9788120350830
AV  - TK5102.5.V57 
PY  - 2015///
CY  - New Delhi
PB  - PHI Learning Private Limited
KW  - Technology
KW  - Telecommunication- switching System
ER  -