TY  - GEN
AU  - Bellamy,John
TI  - Digital telephony
SN  - 9814126357
U1  - 621.385 BEL 
PY  - 2000///
CY  - New York
PB  - Wiley
KW  - Digital telephone systems
UR  - http://www.loc.gov/catdir/description/wiley0310/99034015.html
UR  - http://www.loc.gov/catdir/toc/onix01/99034015.html
ER  -