TY  - BOOK
AU  - Bellamy,John
TI  - Digital telephony
T2  - Wiley series in telecommunications
SN  - 0471620564
U1  - 621.385 20
PY  - 1991///
CY  - New York
PB  - Wiley
KW  - Digital telephone systems
N1  - Includes bibliographical references and index
ER  -