TY  - BOOK
AU  - Bellamy, John
TI  - DIGITAL TELEPHONY
U1  - 621.385 
PY  - 1982///
CY  - New York
PB  - John Wiley
KW  - Digital Communications
KW  - Digital Modulation
KW  - Telephone Switching Systems Electronic
N1  - Bibliography : P. 519-521
ER  -