TY  - BOOK
AU  - BELLAMY J. C.
TI  - DIGITAL TELEPHONY
U1  - 621.385 
PY  - 2000///, R.P. 2014
PB  - WILEY INDIA PVT. LTD.
KW  - ELECTRONICS AND TELECOMMUNICATION
N1  - SE/SI/2079
ER  -