TY  - BOOK
AU  - BELLAMY, JOHN C
TI  - DIGITAL TELEPHONY 
SN  - 9-814-12635-7
U1  - 621.385 O 03 BEL 
PY  - 2003///
CY  - NEW YORK
PB  - JOHN WILEY AND SONS PVT. LTD.
ER  -