TY  - BOOK
AU  - Martin 
TI  - Telecommunications and the computer 
SN  - 0139024794 
U1  - 621.382 MAR 1990 
PY  - 1990///
CY  - london
PB  - Prentice-Hall International
KW  - Data transmission systems
KW  - Telecommunication
N1  - Includes index
ER  -