TY  - BOOK
AU  - Bellamy,John
TI  - Digital telephony
SN  - 0471080896
PY  - 1982///
CY  - New York
PB  - Wiley
KW  - Digital communications
KW  - Digital modulation
KW  - Telephone switching systems, Electronic
N1  - Includes index; Bibliography : p.519-p.521
ER  -