TY  - BOOK
AU  - THIAGAN
AU  - VISWANATHAN
TI  - TELECOMMUNICATION SWICHING SYSTEMS & NETWORKS
PY  - 1992///
CY  - NEW DELHI
PB  - ASHOK K GHOSH PRENTIC HALLOF INDIA PVT LTD M-97 CONNAUGHT CIRCUS N.DELHI 100 001
ER  -