TY  - GEN
AU  - Viswanathan, Thiagarajan
AU  - Bhatnagar, Manav
TI  - Telecommunication Switching Systems and Networks
SN  - 9788120350830
U1  - 621.380 VIS 
PY  - 2015///
CY  - Delhi
PB  - PHI Learning Pvt. Ltd.
KW  - Telecommunication--Switching systems
ER  -