TY  - BOOK
AU  - Roddy, Dennis
AU  - Coolen, John
TI  - Electronic communications
SN  - 9788177585582
U1  - 621.382 ROD 
PY  - 2013///
CY  - New Delhi
PB  - Dorling Kindersley (India) Pvt. Ltd
KW  - Electronic communications
ER  -