TY  - BOOK
AU  - Roddy D.
AU  - Coolen J.
TI  - Electronic Communications
SN  - 0000017542
U1  - 621.3811 
PY  - 1984///
CY  - New Delhi
PB  - P.H.I.
KW  - Advaced Comm (621.3811)
KW  - Communications  Electronic
ER  -