TY  - BOOK
AU  - Roddy (Dennis)
AU  - Coolen (John)
TI  - Electronic communications 
SN  - 81-203-0984-7
U1  - 621.382 
PY  - 1997///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Electronic communication
KW  - Communications
KW  - Electronics
N1  - Includes index
ER  -