TY  - GEN
AU  - Roddy,Dennis
AU  - Coolen,John
TI  - Electronic communications
SN  - 9788177585582 (pbk.)
AV  - TK5101 .R56 1995
U1  - 621.382 
PY  - 2008///
CY  - New Delhi
PB  - Pearson, 
KW  - Electronic communication
KW  - Telecommunication
N1  - Includes appendices & index
ER  -