TY  - BOOK
AU  - Bates, Regis J.
AU  - Gregory, Donald W.
TI  - Voice and data communications handbook
SN  - 9780070063969
U1  - 384 
PY  - 1998///
CY  - New York
PB  - McGraw-Hill
KW  - Telecommunication - Handbooks, manuals etc
ER  -