TY  - BOOK
AU  - VISWANATHAN THIAGARAJAN
TI  - TELECOMMUNICATION SWITCHING SYSTEMS AND NETWORKS
SN  - 978-8120307131
U1  - 621.387 
PY  - 1992///
CY  - NEW DELHI
PB  - P.H.I PUBLISHER-1
KW  - "Telephone switching systems, Electronic"
ER  -