TY  - BOOK
AU  - Bates,Regis "Bud"
AU  - Gregory,Donald W.
TI  - Voice & Data Communications Handbook
SN  - 0072263350 (Paperback)
U1  - 004.6GRA. 
PY  - 2001///
CY  - New delhi.
PB  - Tata McGraw-Hill 
KW  - Telecommunication Systems
UR  - http://www.amazon.com/exec/obidos/ASIN/0072263350/chopaconline-20
ER  -