TY  - BOOK
AU  - Roddy D,
AU  - Coolen J,
TI  - Electronic Communications 
SN  - 9788177585582
U1  - 621.382 
PY  - 2011///
CY  - New Delhi
PB  - Dorling Kindersley (India) Pvt.Ltd. Licensees of Pearson Education
ER  -