TY  - BOOK
AU  -  Bellamy, John,
TI  -  Digital telephony
SN  -  0471620564
U1  -  621.385 BEL 
PY  - 1991///
CY  -  New York
PB  -  Wiley
KW  -  Digital telephone systems
N1  -  "A Wiley-Interscience publication.";  Includes bibliographical references and index
ER  -