TY  - BOOK
AU  - Martin,James
TI  - Telecommunications and the computer
SN  - 0876927711
U1  - 621.3885 
PY  - 1990///
CY  - New Delhi
PB  - Prentice~Hall of India
KW  - Telecommunication
KW  - Data transmission systems
KW  - Analog transmission
ER  -