TY  - BOOK
AU  -  Viswanathan, Thiagarajan
TI  -  Telecommunication switching systems and networks
SN  - 2734
U1  -  621.3857  VIS-T 
PB  -  Prentice Hall of India Pvt. Ltd., New Delhi
KW  -  Automatic and semiautomatic switching systems
ER  -